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Asked • 05/21/20

Math Problem with Standard deviation and Expected Time

A survey was done on a group of people that asked the time, , it takes them to commute to work, rounded to the nearest 10 minutes. Use the probability distribution table below to answer Part 1-2.


X P(X=x)

0 0.125

10 0.221

20 ____

30 0.165

40 0.098

50 0.024

Part 1: Calculate the expected time for a person to commute to work.

Part 2: Calculate the standard deviation for the time it takes a person to commute to work.

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