Question

MEDAL!

Of 20 scores, 19 are less than or equal to 10. Find the percentile rank of 10.

Answer 1

what are the possible answers

Answer 2

They didn't give any options of possible answers.

Answer 3

@jhonyy9 @KamiBug @SolomonZelman @mathstudent55

Answer 4

Do I just do \(19 \div 20\) ?

Answer 5

No.

Answer 6

Then?

Answer 7

Give me a minute.

Answer 8

Okay. A percentile rank is given by formula is:

R = P/100 x (N + 1)

Where. R = Percentile Rank.
P = Percentile that you are trying to find. (10)
N = Total number of scores

Can you plug in?

Answer 9

R = 10/100 x (20 + 1) = 0.1 x 21 = 2.1

Answer 10

There you go.

Answer 11

So the answer is 2.1% right?

Answer 12

Yea.

Answer 13

Thank you!