Homework Help: Statistics

Posted by Darren on Sunday, March 4, 2012 at 9:40pm.

The average age of vehicles registered in the united states is 96 months, with a standard deviation of 16 months. If a random sample of 36 vehicles is selected, find the probability that the mean of their ages is between 90 and 100 months. Provide four places past the decimal in your answer

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