Statistics
posted by Leigh .
a normal distribution ha am ean of 80 with a standard deviation of 20. what score separates the highest 15% of the distribution from the rest of the score?

Statistics 
TutorCat
the formula of zscore:
z=(xmu)/sigma
where mu=mean and sigma=standard deviation
find the zscore equivalent on the table that is equivalent to .85 to substitute back into equation and solve for x
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