Multiple Choice
After increased patrol,91% of vehicles on a road travel above 45 km/h with a standard deviation of 5.2 km/h.Assuming a Normal model is appropriate,find the mean speed.
A) 40.95 km/h
B) 50.2 km/h
C) -38.03 km/h
D) 4.73 km/h
E) 51.97 km/h
Correct Answer:
Verified
Correct Answer:
Verified
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