IQ scores are normally distributed with a mean of 100 and a standard deviation of 16. a) What percent of people have an IQ of less than 68?
b) What percent of people have an IQ between 100 and 132?
c) Write a 68% confidence interval.
d) If 10,000 people are studied, how many will score above a 148 on the IQ?

a 16.3%,

b88%,

c. i have no idea :/

d 12%

Step-by-step explanation:

a) What percent of people have an IQ of less than 68?

is

b) What percent of people have an IQ between 100 and 132?

is

c) Write a 68% confidence interval.

is

d) If 10,000 people are studied, how many will score above a 148 on the IQ?

is

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

step-by-step explanation:

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.