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Assume that a set of test scores is normally distributed with a mean

/in /by

Assume that a set of test scores is normally distributed with a mean

of 110 and a standard deviation of 15 Use the​ 68-95-99.7 rule to find the following quantities.
a. The percentage of scores less than 110 is what ​%.
​(Round to one decimal place as​ needed.)
b. The percentage of scores greater than 125 is what %.
​(Round to one decimal place as​ needed.)
c. The percentage of scores between 80 and 125 is what ​%.
​(Round to one decimal place as​ needed.)

 
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