21. The IQs of individuals admitted to a state school for the mentally retarded are approximately normally

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21. The IQs of individuals admitted to a state school for the mentally retarded are approximately normally distributed with a mean of 60 and a standard deviation of 10.

a. Find the proportion of individuals with IQs greater than 75.

b. What is the probability that an individual picked at random will have an IQ between 55 and 75?

c. Find P(50 < X < 70).

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Biostatistics A Foundation For Analysis In The Health Sciences

ISBN: 9780471163862

7th Edition

Authors: Wayne W Daniel

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Question Posted: Sep 20, 2024 04:02 AM

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21. The IQs of individuals admitted to a state school for the mentally retarded are approximately normally

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Biostatistics A Foundation For Analysis In The Health Sciences

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