The scores of a standardized test are normally distributed with a mean of 500 points and a standard
deviation of 30 points. Please use the normal graph provided in the notes to answer the following
questions. Do not use a graphing calculator’s normal distribution function.
13. What percent of test takers scored below 470?
14. What percent of test takers scored above 440?
15. What percent of test takers scored between 470 and 530?
16. What percent of test takers scored below 410 or above 590?
17. If a student was told that she ranked at the 16th percentile, what was her test score?

Question

The scores of a standardized test are normally distributed with a mean of 500 points and a standard
deviation of 30 points. Please use the normal graph provided in the notes to answer the following
questions. Do not use a graphing calculator’s normal distribution function.
13. What percent of test takers scored below 470?
14. What percent of test takers scored above 440?
15. What percent of test takers scored between 470 and 530?
16. What percent of test takers scored below 410 or above 590?
17. If a student was told that she ranked at the 16th percentile, what was her test score?

pphalke · Answer

I don't know what the teacher means by use a normal graph provided in the notes 

but please help @Anaise