<PRE><B>Question 1119474</B>
assume that the random variable X is normally distributed, with mean m = 50 and standard deviation s = 7. Find each indicated percentile for X. 
The 90th percentile? 
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Find the z-value with a left-tail of 0.9
invNorm(0.9) = 1.2816
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Find the corresponding raw score::
x = 1.2816*7 + 50
x = 58.97
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Cheers,
Stan H.
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