Multiple Choice
Sure Stone Tire Company has established that the useful life of a particular brand of its automobile tires is normally distributed with a mean of 40,000 kilometres and a standard deviation of 5000 kilometres.What is the probability that a randomly selected tire of this brand has a life of at most 30,000 kilometres?
A) 0.5000
B) 0.4772
C) 0.0228
D) 0.9772
E) 1.0000
Correct Answer:
Verified
Correct Answer:
Verified
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