student has two routes she can take to campus. The length of time it takes to dr

Question

student has two routes she can take to campus. The length of time it takes to drive each of these routes depends on traffic. Route A has a mean travel time of 20 minutes and standard deviation 4 onas a mean travel time of 16 minutes with a standard deviation of 3 minutes. Assume both distributions are unimodal and roughly symmetric Use this information to answer the next three questions It the 2-score for the student's dive on Route A is 21 what is the achual commute time in minutes? Oa 11 6 minutes b. 13,.7 minutes C 28 4 minute d 22 3 minutes

Explanation / Answer

Formula: Z = (x - )/

-2.1 = (x - 20)/4,
Actual commute time,  x = (-2.1*4) + 20 = 11.6

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