Question

Asked Nov 3, 2019

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Automobile repair costs continue to rise with the average cost now at $367 per repair.† Assume that the cost for an automobile repair is normally distributed with a standard deviation of $88. Answer the following questions about the cost of automobile repairs.

(a)What is the probability that the cost will be more than $460? (Round your answer to four decimal places.)

(b)What is the probability that the cost will be less than $240? (Round your answer to four decimal places.)

(c)What is the probability that the cost will be between $240 and $460? (Round your answer to four decimal places.)

(d)If the cost for your car repair is in the lower 5% of automobile repair charges, what is your maximum possible cost in dollars? (Round your answer to the nearest cent.)

Step 1

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Step 2

It is given that the mean and standard deviation are 367 and 88, respectively.

a)

The required probability is obtained as follows:

Step 3

b)

The required probability is ...

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