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December 19, 2014

Homework Help: statistics

Posted by Sandra on Monday, September 3, 2012 at 8:53pm.

2. The results of a recent survey indicate that the average new car costs $23,000, with a standard deviation of $3,500. The price of cars is normally distributed.
a. What is a Z score for a car with a price of $ 33,000?

b. What is a Z score for a car with a price of $30,000?

c. At what percentile rank is a car that sold for $30,000?

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