How many standard deviations from the mean would a car

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John Beale of Stanford, CA, recorded the speeds of cars driving past his house, where the speed limit read 20 mph. The mean of 100 readings was 23.84 mph with a standard deviation of 3.56 mph. (He actually recorded every car for a two-month period.)

How many standard deviations from the mean would a car going under the speed limit be?

A) -2

B) -1.08

C) 1.08

D) 2

Reference no: EM13626662

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