The mean height of women in a country (ages 20minus29) is 64.2 inches. a random sample of 50 women in this age group is selected. what is the probability that the mean height for the sample is greater than 65 inches? assume sigmaequals2.58. round to four decimal places.

0.0142

Step-by-step explanation:

Given : The mean height of women in a country (ages 20 - 29) is 64.2 inches.

i.e.

Also,

Sample size : n= 50

Let x denotes the height of women.

Then, the probability that the mean height for the sample is greater than 65 inches :-

Hence, the the probability that the mean height for the sample is greater than 65 inches = 0.0142

the anwser is d) 75°

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)