Mathematics, 01.10.2019 11:30, bbygrill

Astudent has computed that it takes an average (mean) of 17 minutes with a standard deviation of 3 minutes to drive from home, park the car, and walk to an early morning class. one day it took the student 21 minutes to get to class. how many standard deviations from the average is that?

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Astudent has computed that it takes an average (mean) of 17 minutes with a standard deviation of 3 m...