SOLUTION: A normal distribution has mean mu= 85 and s=4.5 find third quartile

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Question 1191981: A normal distribution has mean mu= 85 and s=4.5 find third quartile
Answer by Boreal(15235) About Me  (Show Source):
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3rd quartile is 75% percentile which has z=-0.674
z=(x-mean)/sd
0.674=(x-85)/4.5
3.04=x-85
x=88.04 or 88.0