Scores on a test have a mean of 81, and Q3 is 82.6. The scores have a distribution that is approximately normal. Find P9
Posted: Wed Jul 06, 2022 12:11 pm
Scores on a test have a mean of 81, and Q3 is 82.6. The scores have a distribution that is approximately normal. Find P90 (you will need to find the standard deviation first)