4. Using a distribution with a mean of 100 and a standard deviation of 15.

A. What is the percentile score of a score of 112?
B. What is the percentile score of a score of 82?

Question

4.	Using a distribution with a mean of 100 and a standard deviation of 15.

A.	What is the percentile score of a score of 112?
B.	What is the percentile score of a score of 82?

slinley · Answer

idk...lol,, yes i do wait a sec!

mathmale · Answer

Determine the z-score for a score of 112.  Then find the area to the left of this z-score.  The area should be a decimal fraction.  Multiply it by 100.  That will be the percentile score corresponding to a score of 112 when the distribution mean is 100 and std. dev. 15.

slinley · Answer

nevermind, @mathmale beat me to the answer :(

anonymous · Answer

How do I determine the z-score?  @mathmale

slinley · Answer

i know how to .......but you asked mathmale, so nevermind :(

anonymous · Answer

@slinley ?

slinley · Answer

hold on

slinley · Answer

determine it for a score of 112, then find the area to the left