Question
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X = IQ
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual
is randomly chosen. Let X = IQ of an individual.
a. X ~ _____(_____,_____)
b. Find the probability that the person has an IQ greater than 120. Include a sketch of the graph, and write
a probability statement.
c. MENSA is an organization whose members have the top 2% of all IQs. Find the minimum IQ needed
to qualify for the MENSA organization. Sketch the graph, and write the probability statement.
d. The middle 50% of IQs fall between what two values? Sketch the graph and write the probability
statement.
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Quantitative Analysis For Management
Authors: Barry Render, Ralph M. Stair, Michael E. Hanna
11th Edition
9780132997621, 132149117, 132997622, 978-0132149112
