Question

if the mean score was 52 and the standard deviation was 13 what scores did 99.7% of the students score between

Answer 1

Explanation:

Three standard deviations BELOW and ABOVE the mean encompass 99.7 % of scores ...this is a fact about bell curves.....

three standard deviations = 39

then 52 ± 39 would encompass 99.7% of the scores

= 13 thru 91