To do that you'll need the mean and standard deviation of all the scores. Can you provide this info?
For example: Supposing that the mean of these scores were 52 and the standard deviation 3. You'd need to find the "z-score" of 57 in this case.
57 - 52
It is z = ------------ , or z = 5/3, or z = 1.67.
3
Find the area to the left of z = 1.67. Multiply that area by 100% to find the percentile rank of the score 57.
Answer:
ITS UNDEFINED
Step-by-step explanation:
He would need less than 8. So he would need 2.5 pints. I think.
A = b√x+c
a/b = √x+c
(a/b)^2 = x + c
(a/b)^2 - x = c