Mathematics, 26.03.2020 05:09 mareiashanti002

The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed with mean =41 and standard deviation =4 . Use the TI-84 Plus calculator to answer the following.

(a) What is the probability that a randomly chosen tire has a lifetime greater than 50 thousand miles?

(b) What proportion of tires have lifetimes between 36 and 46 thousand miles?

(c) What proportion of tires have lifetimes less than 44 thousand miles?

Round the answers to at least four decimal places.

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