Question

Find the 20th, 40th, 60th, and 80th percentiles of the standard normal distribution. Round the answers to two decimal places.

The 20th percentile = .

The 40th percentile = .

The 60th percentile = .

The 80th percentile = .

Answer 1

i'm a little stuck on this question. if i'm not given any values how do i solve this?

Answer 2

The standard normal distribution has a mean of 0 and a standard deviation of 1

Answer 3

use a chart of z-scores to find for the 20th percentile -0.84, for the 40th -0.25, for the 60th 0.25, and for the 80th 0.84.

Answer 4

http://wiki.answers.com/Q/How_do_you_find_percentiles_when_given_standard_deviation_and_mean

Answer 5

I THINK that is the right answer anyways

Answer 6

thanks for responding @cebroski you were right I made it more difficult that I should have.