National Achievement Test Scores Narrative
The scores on a national achievement test were normally distributed, with a mean of 550 and a standard deviation of 112.
-Refer to National Achievement Test Scores Narrative. If you achieved a score of 690, how far, in standard deviations, did your score depart from the mean?

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The scores on a national achievement test were normally distributed, with a mean of 550 and a standard deviation of 112.
-Refer to National Achievement Test Scores Narrative. If you achieved a score of 690, how far, in standard deviations, did your score depart from the mean?