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A normal distribution has a mean of 40 and a standard deviation of 3 Use the 68-95-99.7 rule to find (a) the percentage of values

A normal distribution has a mean of 40 and a standard deviation of 3

Use the 68-95-99.7 rule to find

(a) the percentage of values in the distribution between34 and 40.

(b) the percentage of values in the distribution falling between 37 and43.

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