Iq scores are normally distributed with a mean of 100 and a standard deviation of 15. a. calculate the probability of finding a genius (iq > 130). b. calculate the probability of average intelligence (between 90 and 110).

Mean is and a standard deviation is , then the variable .

Use substitution

.

This substitution gives you that .

a. For X=130, and (the decimal value is taken from the Standard Normal Distribution Table).

b. For X=90, and for X=110, . Then (the decimal value is taken from the Standard Normal Distribution Table).

on your paper it doesn't say the answer but the the answer is altitude

step-by-step explanation:

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.