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  3. suppose that the miles-per-gallon (mpg) rating of

Suppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and...

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Statistics

Suppose that the miles-per-gallon (mpg) rating of passenger carsis normally distributed with a mean and a standard deviation of35.9 and 2.5 mpg, respectively. [You may find it useful toreference the z table.]

a. What is the probability that a randomly selected passengercar gets more than 37 mpg?

b. What is the probability that the average mpgof three randomly selected passenger cars is more than 37 mpg?(Round “z” value to 2 decimal places, and finalanswer to 4 decimal places.)

c. If three passenger cars are randomly selected, what is theprobability that all of the passenger cars get more than 37mpg? (Round “z”value to 2 decimal places, and final answer to 4 decimalplaces.)

Answer & Explanation Solved by verified expert
4.4 Ratings (616 Votes)
359sd 25a PZ 044 1 PZ    See Answer
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