Question

I don't understand this question that well, can you please help me.

Students taking a​ make-up test receive the following​ grades: 76​, 90​, 97​, 96​, 86​, 95​, 94​, 69​, 71​, and 75. Which grade has a percentile rank of 80​?

The test score with a percentile rank of 80 is _.

Answer 1

So a percentile rank of a score is how the score of a individual test taker compares to the scores of the other test takers.

To find percentile rank you need to use this formula: R = P/100 x (N + 1)

The first step is to compute the rank (R) of the 25th percentile. This is done using the following formula: R = P/100 x (N + 1) where P is the desired percentile (25 in this case) and N is the number of numbers (8 in this case).

I hope this helps a bit. Good luck with the problem!