Question: Normal probabilities. Example 4.11 gives the Normal distribution N(50,000, 5500) for the tread life X of a type of tire (in miles). Calculate the following

Normal probabilities. Example 4.11 gives the Normal distribution N(50,000, 5500) for the tread life X of a type of tire (in miles). Calculate the following probabilities:

(a) The probability that a tire lasts more than 50,000 miles.

(b) P(X > 60,000)

(c) P(X ≥ 60,000)

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