angelamakaymung
Answered

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, 99.7% of the population will have a height within which of the following ranges?

A56 inches to 80 inches
B60 inches to 76 inches
C64 inches to 72 inches
D52 inches to 84 inches

Verified Answer :

caylus

Hello,
\(\int\limits^h_0 {\frac{1}{2\pi} * e^{\frac{-(x-68)^2}{2}} dx}=0.4985\)
==>h=3*4=12


[68-12, 68+12] is the interval



Answer A


mnlrussel18

Answer:

56 inches to 80 inches

Step-by-step explanation: