1 answer

A tire company finds the lifespan for one brand of its tires is normally distributed with...

Question:

A tire company finds the lifespan for one brand of its tires is normally distributed with a mean of 48,400 miles and a standard deviation of 5,000 miles.
Find the probability of a tire lasting more than 57,000 miles.

Answers

M=Y8yoo - 5ooo plx>57000) By Normal approximation - 57000-Y l 7 57000 48yoo el zo Sooo Plz 27 1.72) Plze 1.72) By 2 table 1-0

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