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Spring 2024 STA 2215 Dr. Ramnarine Problem Set 1 Instructions:  This problem set is due by on Friday February 2nd, 2024 by 11:59 p.m.  The homework assignment will be submitted through the Blackboard Portal . There are 6 questions. Total: 55 points .  In order to receive credit, you MUST SHOW YOUR WORK! o Listing a numerical answer without any proof of work will receive 0 credit . o You are expected to give detailed answers to questions that ask for a discussion, interpretation or explanation.  Additionally, please make sure the page numbers are labelled and the question and corresponding parts are clearly stated. Submission Options: Option 1:  Write your answers on pages with pen/pencil AND scan all pages as ONE DOCUMENT . This document must be in . pdf format . o You can use a scanner app on your phone like FineScanner, CamScanner, and AdobeScan It. is advisable to download the phone scanning app CamScanner. Here is a tutorial video using the CamScanner app:  https://youtu.be/UkYlGa3y4tk o Save the file as a PDF, and name the file FirstInitial_LastName.pdf For example if your name is Jessie Smith, your file should be labelled as J_Smith.pdf  Please do not submit any image “picture” files - .jpeg, .jpg, .png. Do not take a picture of your handwritten notes and submit the pictures. It has to be scanned through the phone app as described above. If the assignment is not submitted as a pdf file – it will be returned to you and not graded till the above requirements are met. If you are experiencing problems with submitting, email me and I will help! Option 2 : If you have a stylus pen and tablet on which you can write your solutions, you can utilize this method. Convert the file to pdf format. Name the file FirstInitial_LastName.pdf. For example if your name is Jessie Smith, your file should be labelled as J_Smith.pdf 1

Spring 2024 STA 2215 Dr. Ramnarine Question 1 [10 points] The following information regarding the richest Americans was reported in a recent issue of Forbes . Name Ranking Worth ($Billions) Age State Number of Children Source Musk, Elon 1 251 51 Texas 10 Tesla, SpaceX Bezos, Jeff 2 151 58 Washington 4 Amazon Gates, Bill 3 106 66 Washington 3 Microsoft Ellison, Larry 4 101 78 Hawaii 2 Software Buffet, Warren 5 97 92 Nebraska 3 Berkshire Hathaway Page, Larry 6 93 49 California 2 Google Sergey, Brin 7 89 49 California 2 Google Ballmer, Steve 8 83 66 Washington 3 Microsoft Bloomberg, Michael 9 76.8 80 New York 2 Bloomberg LP Walton, Jim 10 57.9 74 Arkansas 4 Walmart Zuckerberg, Mark 11 57.7 38 California 2 Facebook Walton, Rob 12 56.7 77 Arkansas 3 Walmart Koch, Julia 13 56 60 New York 3 Koch Industries Walton, Alice 14 50 72 Texas 0 Walmart Dell, Michael 14 50 57 Texas 4 Dell Technologies a) [2 points] How many elements are in the above data set? b) [2 points] How many variables are in this data set? c) [6 points] What measurement scale is used for each variable? Question 2 [8 points] An online newspaper, The Tennessean recently conducted a poll to obtain reader opinion on the proposed gas tax increase. Participants responded to the following question: “Would you vote for a state law that would increase the gas tax up to 20 cents a gallon, with the new gas tax money going to improve roads, and bridges in the state?” Possible responses were vote for, vote against, and no opinion. One thousand 2