25:["$","title",null,{"children":"Pset #1 | Maria Jose Gutierrez's Workspace | Observable"}] 49:T4ed,fifty_cities = [ "New York City, New York", "Los Angeles, California", "Chicago, Illinois", "Houston, Texas", "Phoenix, Arizona", "Philadelphia, Pennsylvania", "San Antonio, Texas", "San Diego, California", "Dallas, Texas", "San Jose, California", "Austin, Texas", "Jacksonville, Florida", "Fort Worth, Texas", "Columbus, Ohio", "Charlotte, North Carolina", "Indianapolis, Indiana", "San Francisco, California", "Seattle, Washington", "Denver, Colorado", "Washington, D.C.", "Boston, Massachusetts", "El Paso, Texas", "Nashville, Tennessee", "Oklahoma City, Oklahoma", "Las Vegas, Nevada", "Detroit, Michigan", "Portland, Oregon", "Memphis, Tennessee", "Louisville, Kentucky", "Milwaukee, Wisconsin", "Baltimore, Maryland", "Albuquerque, New Mexico", "Tucson, Arizona", "Fresno, California", "Sacramento, California", "Kansas City, Missouri", "Long Beach, California", "Mesa, Arizona", "Atlanta, Georgia", "Colorado Springs, Colorado", "Virginia Beach, Virginia", "Raleigh, North Carolina", "Omaha, Nebraska", "Miami, Florida", "Oakland, California", "Minneapolis, Minnesota", "Tulsa, Oklahoma", "Wichita, Kansas", "New Orleans, Louisiana", "Arlington, Texas" ]4a:[] 29:{"id":"40b7dd1298886e8a","slug":null,"title":"Pset #1","thumbnail":"50d340a78a402f0d16fea310cefd42b651b4127f0c75fa3d16fb8fc3f0fa0ce3","access_level":"public","create_time":"$D2023-10-03T15:08:33.744Z","update_time":"$D2023-10-17T17:21:46.956Z","view_time":null,"first_public_time":"$D2023-10-03T15:08:33.744Z","has_unpublished_edits":null,"fork":{"id":"82c0b705281e4a99","slug":"pset-1","title":"Pset #1","owner":{"id":"450d717bb5bfacc0","login":"datajournos-fall23","name":"Techniques in Computation and Reporting, Fall 2023"}},"stars":0,"starred":false,"owner":{"type":"team","id":"feb556c62a725dd2","login":"maria-jose-gutierrez-ws","name":"Maria Jose Gutierrez's 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Workspace","avatar_url":"https://avatars-next.observableusercontent.com/ade296e4361576940554e7c9953165d24129901d5008a233726df3f8a9756f9c","tier":"starter_2024","role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"titling":"auto","title":"Pset #1","cells":[{"id":0,"value":"# Pset #1","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":27,"value":"## Types: What type are the following variables?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":32,"value":"type_1 = \"Hello\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":117,"value":"type_2 = 324","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":119,"value":"type_3 = true","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":121,"value":"type_4 = false","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":123,"value":"type_5 = \"World\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":35,"value":"Type 1 is a: String\n\nType 2 is a: Numerical\n\nType 3 is a: Boolean\n\nType 4 is a: Boolean\n\nType 5 is a: String\n","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":136,"value":"## Arrays","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":169,"value":"Define an array with the following numbers in it: 78, 92, 37, 9.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":140,"value":"problem_6_test_array = [78, 92, 37, 9]\n","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":163,"value":"#### AutoCheck:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":154,"value":"{\n if (arrayEquals(problem_6_test_array, [78, 92, 37, 9])) {\n return is_correct();\n } else {\n return error_emoji();\n }\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":421,"value":"Part 2: What is the 2nd index in the above array?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":425,"value":"problem_6_part_2 = problem_6_test_array[2]==37","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":434,"value":"#### AutoCheck:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":432,"value":"{\n if (problem_6_part_2) {\n return is_correct();\n } else {\n return error_emoji();\n }\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":436,"value":"Part 3: What is the length of the array? Use the length attribute on the array to find this out programmatically.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":438,"value":"length_of_array = problem_6_test_array.length","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":138,"value":"## Objects/Maps","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":189,"value":"car = ({type: \"Fiat\", model: \"500\", color: \"white\"})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":192,"value":"Problem 7: Which attribute of the above object is equal to \"Fiat?\" - Complete the following:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":196,"value":"problem_7 = \"Fiat\" == car.type","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":348,"value":"#### Autocheck: ","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":359,"value":"{\n if (problem_7) {\n return is_correct();\n } else {\n return error_emoji();\n }\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":301,"value":"Problem 8: What model is the above car object?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":299,"value":"problem_8 = car.model==500","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":367,"value":"#### AutoCheck:","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":370,"value":"{\n if (problem_8) {\n return is_correct();\n } else {\n return error_emoji();\n }\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":221,"value":"## Conditionals","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":275,"value":"Problem 9: Fizz buzz is a very famous coding problem. It's one of the first problems people used to get during coding interviews. Here's the problem:\n\nWrite a function (I've started writing it for you - just fill in the parts that say Fill in!) that builds up a string of \"n\" number of words. The function will take a variable, n, and for every number, i, less than or equal to n, you have to add to the string:\n- Add the word \"FizzBuzz\" if i is divisible by 3 *and* 5.\n- Add the word \"Fizz\" if i is divisible only by 3.\n- Add the word \"Buzz\" if i is divisible only by 5.\n- Else just add the number i to the string if none of the above conditions were true.\n\nNote: make sure to add spaces before each addition to the string so its readable!\n\nRemember - you can edit the line below the function to see what output is coming out for a variety of values of n, and you can write out on paper what you expect - this will help you debug if you are having issues.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":277,"value":"function fizz_buzz(n) {\n var output_string = \"\";\n for (var i = 1; i <= n; i += 1) {\n if (i % 3 === 0 && i % 5 === 0){ \n output_string += \" FizzBuzz\"; \n } else if (i % 3 === 0){\n output_string += \" Fizz\";\n } else if (i % 5 === 0) {\n output_string += \" Buzz\";\n } else {\n output_string += \" \" + i;\n }\n }\n return output_string;\n }","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":379,"value":"fizz_buzz(5)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":303,"value":"### AutoCheck","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":340,"value":"{\n if (\n fizz_buzz(19) ==\n \" 1 2 Fizz 4 Buzz Fizz 7 8 Fizz Buzz 11 Fizz 13 14 FizzBuzz 16 17 Fizz 19\"\n ) {\n return is_correct();\n } else {\n return error_emoji();\n }\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":337,"value":"Bonus: how could you prevent the space before the first word in the above output?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":226,"value":"## Boolean Operators","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":231,"value":"a = false","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":237,"value":"b = true","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":240,"value":"c = false","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":243,"value":"What would the output of the following be. First write down what you think it will be, then you can check it if you want by writing in the code into a new cell.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":249,"value":"Problem 10: ```a && b```","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":403,"value":"false","pinned":true,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":252,"value":"problem_10 = a && b","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":383,"value":"Problem 11: a || c","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":407,"value":"false","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":390,"value":"problem_11 = a || c","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":393,"value":"Problem 12: !b && c","pinned":true,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":409,"value":"false","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":411,"value":"problem_12 = !b && c","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":413,"value":"Problem 13: (a && b) || !c","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":416,"value":"true","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":419,"value":"problem_13= (a && b) || !c","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":444,"value":"Problem 14: !b && !(a || c)","pinned":true,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":555,"value":"problem 14= false","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":66,"value":"## Functions and for loops","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":15,"value":"Problem 15: In the next cell, define a function called \"multiply_5\" that takes a variable and multiplies it by 5","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":17,"value":"multiply_5 = (x) => (x*5)","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":57,"value":"### AutoCheck","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":22,"value":"{\n if (multiply_5(5) == 25) {\n return is_correct();\n } else {\n return error_emoji();\n }\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":452,"value":"Problem 16: Given the following array, sum all the elements together.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":264,"value":"sum_array = [5,10,15]","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":456,"value":"problem_16 = {\n var sum = 0;\n for(let i= 0; i < sum_array.length; i++) {\n sum= sum + sum_array[i]\n }\nreturn sum;\n} \n\n ","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":463,"value":"### AutoCheck","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":459,"value":"{\n if (problem_16 == 30) {\n return is_correct();\n } else {\n return error_emoji();\n }\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":70,"value":"Problem 17: We are given an array of all of the AQI's of cities across america. We are looking for the worst city in the country. Write a function that takes two variables, the array of AQI's and the array with the city names, and outputs a string of the worst city. For AQIs, the higher the number, the more polluted the air is.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":108,"value":"function worst_five_cities(array_city_names, array_all_AQIs) {\n var worst_AQI_city = \"\";\n var worst_AQI_number = 0;\n for(let i=0; i< array_all_AQIs.length; i++){\n if(worst_AQI_number < array_all_AQIs[i]){\n worst_AQI_number = array_all_AQIs [i];\n worst_AQI_city = array_city_names [i];\n }\n }\n return worst_AQI_city;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":77,"value":"$49","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":94,"value":"all_AQIs = [\n 6, 90, 89, 24, 95, 64, 34, 90, 63, 33, 66, 22, 95, 72, 36, 23, 51, 51, 61, 3,\n 55, 34, 69, 76, 89, 75, 22, 7, 39, 29, 44, 33, 26, 43, 10, 88, 19, 9, 89, 29,\n 63, 54, 86, 63, 3, 43, 56, 12, 51, 69\n]","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":105,"value":"### Autograding","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":478,"value":"{\n if (worst_five_cities(fifty_cities, all_AQIs) == \"Phoenix, Arizona\") {\n return is_correct();\n } else {\n return error_emoji();\n }\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":73,"value":"Bonus: Write the above function to output an array of the worst 5 cities in america.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":493,"value":"Problem 18: Tables are sometimes represented as an array of other arrays. This is called a 2 dimensional array. The first array of the array will tell you the column headings, and then every subsequent array is the values of those columns.\n\nGiven the below array of arrays, calculate the following:\n- How many people are in the dataset?\n- What is the average age of the class?\n- What percent of the class is taller than 66 inches?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":270,"value":"array_of_arrays = [\n [\"name\", \"age\", \"height(in)\"],\n [\"irene\", 19, 65],\n [\"ashley\", 22, 70],\n [\"mohammed\", 23, 67],\n [\"manuel\", 18, 72],\n [\"ubin\", 35, 63]\n]","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":268,"value":"number_of_people_in_dataset = array_of_arrays.length-1","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":505,"value":"average_age = { \n var total = 0;\n var avg = 0;\n for(let i = 1; i < array_of_arrays.length; i++){\n total = total +array_of_arrays[i][1];\n console.log(total);\n }\n avg= total / (array_of_arrays.length-1);\n return avg;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":508,"value":"percent_taller_than_66 = {\n var count = 0;\n var percent = 0;\n for(let i=1; i < array_of_arrays.length; i++){\n if (array_of_arrays[i][2] > 66){\n count = count +1;\n }\n }\n percent = (count/ (array_of_arrays.length -1))*100;\n return percent;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":510,"value":"### Autocheck","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":513,"value":"{\n if (average_age == 23.4 && percent_taller_than_66 == 60) {\n return is_correct();\n } else {\n return error_emoji();\n }\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":157,"value":"## Imports and Inputs - Ignore","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":81,"value":"function randomGenArray(length) {\n const randomIntegers = [];\n\n for (let i = 0; i < length; i++) {\n const randomInteger = Math.floor(Math.random() * 101); // Generates a random number between 0 and 100\n randomIntegers.push(randomInteger);\n }\n return randomIntegers;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":205,"value":"function arrayEquals(a, b) {\n return (\n Array.isArray(a) &&\n Array.isArray(b) &&\n a.length === b.length &&\n a.every((val, index) => val === b[index])\n );\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":141,"value":"is_correct = () => {\n return html`

${String.fromCodePoint(\n 0x2705\n )}

`;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":174,"value":"error_emoji = () => {\n return html`

${String.fromCodePoint(\n 0x274c\n )}