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

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BMGT: X

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Covid Test

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• 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

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10 Possible Points

P(Covid Status, Covid Test)

X