Multiple Choice
Truck tire life is normally distributed with a mean of 60,000 miles and a standard deviation of 4,000 miles. You bought four tires. What is the probability that the average mileage of the four tires exceeds 66,000 miles?
A) 0.0013
B) 0.9987
C) 0.4987
D) 0.9544
Correct Answer:
Verified
Correct Answer:
Verified
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