Multiple Choice
A huge trucking firm determines that its fleet of trucks averages a mean of 12.4 miles per gallon with a standard deviation of 1.2 miles per gallon on cross-country hauls. The distribution of miles per gallon is approximately normally distributed.What is the probability that a randomly selected truck averages fewer than 10 miles per gallon?
A) 0.0082
B) 0.0228
C) 0.4772
D) 0.5228
E) 0.9772
Correct Answer:
Verified
Correct Answer:
Verified
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