<PRE><B>Question 764809</B>
The SAT math exam has mean of 451 and standard deviation 17. Jimmy scored at the D9 level. What was his raw score? 
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Find the z-value with a 90% left tail.
invNorm(0.9) = 1.2816
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Find the corresponding score value
x = z*s +u
x = 1.2816*17+451 = 472.79
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Cheers,
Stan H.
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