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What proportion of aircrafts can be expected

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Reference no: EM132441697

Problem: FlyHigh Airlines determined that the distance traveled per aircraft per year is normally distributed, with a mean of 60 thousand miles and a standard deviation of 10 thousand miles.

Required:

Question 1: What proportion of aircrafts can be expected to travel between 44 and 54 thousand miles in a year?

Question 2: What percentage of aircrafts can be expected to travel either less than 25 or more than 70 thousand miles in a year?

Question 3: How many miles will be traveled by at least 70 percent of the aircrafts?

Question 4: What are your answers to (a) through (c) if the standard deviation is 12 thousand miles?

Reference no: EM132441697

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