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find out the probability that based on the normal distribution.

The life expectancy of a particular brand of tire is normally distributed with a mean of 40,000 and a standard deviation of 5,000 miles.

What is the probability that a randomly selected tire will have a life of at least 30,000 miles?

1) 0.4772

2) 0.9772

3) 0.0228

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Category:- Statistics and Probability
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