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.
use the pythagorean theorem which is <u>a^2 + b^2 = c^2</u>. 8 goes in either the a or b position and 10 is the longest side so it will go in the c position.
