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Just needed to check if my answers are right. The average cost of a single detached home in Pricy Town for 2014 is $482,000 with

Just needed to check if my answers are right.

The average cost of a single detached home in Pricy Town for 2014 is $482,000 with a standard deviation of $36,000. Let be the mean price of 49 houses. Find the probability that :

a.is greater than $492,000.

b.will fall between $476,000 and $488,000.

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