Question

Asked Oct 10, 2019

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Morgan trucking company determined that on an annual basis the distance traveled per truck is normally distributed with a mean of 50 thousand miles and standard deviation of 12 thousand miles.

1)What the probability that a truck travels less than 34 thousand miles per year?

2)What is the probability that a truck travels between 34 and 50 thousand miles per year?

3)What is the probability that a truck travel more than 70 thousand miles per yea

Step 1

It is given that mean and standard deviation are 50 and 12, respectively.

Step 2

**Let the variable X denotes the annual basis the distance travelled per truck.**

**a.**

The probability that a truck travels less than 34 thousand miles per year is obtained as follows:

Step 3

**b.**

The probability that a truck travels between 34 and 50 thousand miles per year is obtained as follows:

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