The measures of the hand spans of 9th grade students at Tyler high school are approximately normally distributed, with a mean of 7 inches and a standard deviation of 1 inch. Of the following, which group is expected to have the greatest percent of measures?

A. less than 6 inches
B. greater than 7 inches
C. between 6 and 8 inches
D. between 5 and 7 inches

Question

The measures of the hand spans of 9th grade students at Tyler high school are approximately normally distributed, with a mean of 7 inches and a standard deviation of 1 inch. Of the following, which group is expected to have the greatest percent of measures?

A. less than 6 inches
B. greater than 7 inches
C. between 6 and 8 inches
D. between 5 and 7 inches

anonymous · Answer

The answer would be C because if it has a standard deviation of 1, then most of the people would be between 7-1 and 7+1, which is 6 and 8 respectively.

anonymous · Answer

thanks!