Question 755544
The weight of all football players in high school teams is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds. 

A player’s weight is at the 90th percentile of weights. (90 percent players have weight less than this weight) What is the weight of this player in pounds?
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Find the z-value with a left tail of 90%
invNorm(0.9) = 1.2816
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Find the corresponding wt. value using x = z*s + u
wt = 1.2816*25+200 = 232.04 lbs
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Answer: b
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Cheers,
Stan H.
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a. 250 
b. 232
c. 242
d. 268
e. None of the above answers is correct. 
I thought you were suppose to use the formula: P/100 *n 
But I don't know what "n" should be or if that's even the formula I'm suppose to be using.