Suppose the scores of students on an exam are normally distributed with a mean of 423 and a standard deviation of 62. Then approximately 68% of the exam scores lie between the integers and , and the...


Suppose the scores of students on an exam are normally distributed with a mean of 423 and a standard deviation of 62. Then approximately 68% of the exam scores lie between the integers

and

, and the mean is halfway between these two integers.







Aug 16, 2022
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