1) Computing probabilities (3 points) The table shows the results from a new covid test. • Covid Status is a random variable that tells us whether a person actually has covid or not (the plus sign, +, means they have it. The minus sign, -, means they don't). • Covid Test is a random variable that tells us whether a person tested positive for covid or not (+ means tested positive, - means tested negative) • Count is the number of people for each combination of status and test. • P(Covid status, Covid test), is the column of joint probabilities. GGI2013.csv ble x R for D x BMGT: X Problem Set #1 Due: Tue Sep 26, 2023 11:59pm BMGT: X Covid Status BMGT: X m/courses/1354104/assignments/6437563?return_to=https%3A%2F%2Fumd.instructure.com%2Fcalendar%23view_name%3Dmonth%26view.... BMGT: X In Progress NEXT UP: Submit Assignment Covid Test + Quiz: X G conditi x M Inbox X Count 25 50 M Inbox Attempt 1 Add Comment • Covid Test is a random variable that tells us whether a person tested positive for covid or not (+ means tested positive, - means tested negative) • Count is the number of people for each combination of status and test. P(Covid status, Covid test), is the column of joint probabilities. 15 110 Submit Assignment A Studer x G Ô ☆ Show All + 10 Possible Points P(Covid Status, Covid Test) X

Fig: 1