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The following problem needs to be sketched .

100 juniors at a school took the ACT test . The scores were distributed normally with a mean of 22 and a standard deviation of 3. Label the mean and 3 standard deviations from the mean. Be sure to put actual numbers

 Apr 8, 2019
edited by whosmans  Apr 8, 2019
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This should help :

 

 

The mean = 22

Three SDs  occur at 13  and 31

 

 

cool cool cool

 Apr 8, 2019

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