The heights of 1100 boys at West High School were measured, and the mean was found to be 74 inches, with a standard deviation of 2.7 inches. If the heights are approximately normally distributed, what range of heights will include 95% of the boys?
A) 70.3 and 77.7 inches tall
B) 69.1 and 78.9 inches tall
C) 71.4 and 76.6 inches tall
D) 68.6 and 79.4 inches tall
E) 71.3 and 76.7 inches tall

Question

The heights of 1100 boys at West High School were measured, and the mean was found to be 74 inches, with a standard deviation of 2.7 inches. If the heights are approximately normally distributed, what range of heights will include 95% of the boys? ​
A) 70.3 and 77.7 inches tall
B) 69.1 and 78.9 inches tall
C) 71.4 and 76.6 inches tall
D) 68.6 and 79.4 inches tall
E) 71.3 and 76.7 inches tall

Quizplus · Accepted Answer

The Answer of The heights of 1100 boys at West High School were measured, and the mean was found to be 74 inches, with a standard deviation of 2.7 inches. If the heights are approximately normally distributed, what range of heights will include 95% of the boys? ​
A) 70.3 and 77.7 inches tall
B) 69.1 and 78.9 inches tall
C) 71.4 and 76.6 inches tall
D) 68.6 and 79.4 inches tall
E) 71.3 and 76.7 inches tall

The Heights of 1100 Boys at West High School Were