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Question: “Automobile repair costs continue to rise with the average cost now at $367 per repair (U.S….”

Automobile repair costs continue to rise with the average cost now at $367 per repair (U.S. News & World Report website, January 5, 2015). 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 $450?

b) What is the probability that the cost will be less than $250?

c) What is the probability that the cost will be between $250 and $450?

d) If the cost for your car repair is in the lower 5% of automobile repair charges. what is your cost?

Answer: ” Automobile repair costs continue to rise with the average cost now at $367 per repair (U.S….”

Relevant knowledge

The normal distribution of any given mean and standard deviation is converted into Z scale values, with 0 at the center and standard deviations measured along both sides of that center as +1, +2, +3 towards the right-hand side and -1 to -2 to -3 towards the left.

Conclusion

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