Question

5. Aradar detector records the speeds of a group of motorists that pass by. If the mean is 52 mph and the
standard deviation is 3.2 mph, find the z-score for 48 mph.

Answer 1

Answer:

Z = -1.25

Step-by-step explanation:

Z = (x - μ) / σ

Z = (48 - 52) / 3.2

z=-1.25