Mean score on a standardized test

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Reference no: EM1396977

A mean score on a standardized test is 50 with a standard deviation of 10. Answer the following:

a. What scores fall between -1 and +1 standard deviation?

b. What percent of all scores fall between -1 and +1 standard deviation?

c. What score falls at +2 standard deviations?

d. What percentage of scores falls between +1 and +2 standard deviations?

Reference no: EM1396977

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