Asked by angie
Given a data set with the mean = 44 and the standard deviation = 15, what is the value of the Third Quartile?
Answers
Answered by
PsyDAG
Third Quartile = 75th percentile
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the Z score = 75th percentile. Put the appropriate values into this equation to solve for the score.
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the Z score = 75th percentile. Put the appropriate values into this equation to solve for the score.
Z = (score-mean)/SD
Answered by
mary
42
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