Question

Suppose the heights of the members of a population follow a normal

distribution. If the mean height of the population is 68 inches and the
standard deviation is 4 inches, 95% of the population will have a height within
which of the following ranges?
O
A. 52 inches to 84 inches
B. 60 inches to 76 inches
C. 64 inches to 72 inches
O
D. 56 inches to 80 inches

Answer 1

B. 60 inches to 76 inches.

Explanation:

95% of the estimations would be inside 2 standard deviations of the mean.

The mean = 68

Standard deviation = 4

2 x 4 = 8

68 - 8 = 60

68 + 8 = 76.

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