Multiple Choice
After increased patrol,cars on a road travel at speeds averaging 54 km/h.If 10% of vehicles travel above 70 km/h,what approximate standard deviation could represent this model (assuming a Normal model is appropriate) ?
A) 35.94
B) 12.50
C) 7
D) 5.4
E) -12.50
Correct Answer:
Verified
Correct Answer:
Verified
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