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, 68% of the population will have a height within
which of the following ranges?
A. 64 inches to 72 inches
B. 56 inches to 80 inches
C. 60 inches to 76 inches
D. 52 inches to 84 inches

11 feet 6 inches and 8 feet 6 inches

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.

answer: b

step-by-step explanation: