You may need to use the appropriate appendix table to answer this question. Automobile repair costs...

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You may need to use the appropriate appendix table to answer this question. Automobile repair costs...

You may need to use the appropriate appendix table to answer this question.

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 $490? (Round your answer to four decimal places.)

(b)

What is the probability that the cost will be less than $280? (Round your answer to four decimal places.)

(c)

What is the probability that the cost will be between $280 and $490? (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.)

math Statistics-And-Probability

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