Answer to Question #148394 in Statistics and Probability for Abigail Pontillo

Question #148394
Albus Severus Potter, a Physics Major, is a prolific and a Math genius of this university. If it is known
that Albus’ IQ belongs to the upper 1% of the student population, what is his minimum IQ? (Assume
normal IQ distribution, mean = 110, standard deviation = 10)
1
Expert's answer
2020-12-03T16:47:47-0500

P(x>z) = 0.01

z = 2.326

X - minimum IQ

z=(X-"\\mu")/"\\sigma"

X = z"\\sigma"+"\\mu" = 2.326*10+110 = 133.3


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