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A variable is normally distributed with mean 9and standard deviation 2. a. Find the percentage of all possible values of the variable that lie between

A variable is normally distributed with mean 9and standard deviation 2.

a.Find the percentage of all possible values of the variable that lie between 7 and 12.

b.Find the percentage of all possible values of the variable that exceed 5.

c.Find the percentage of all possible values of the variable that are less than 6.

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