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Assume tltat IQ's follow a normal distribution with a mean p = l and standard deviation o = 16. {a} What is the probability that
Assume tltat IQ's follow a normal distribution with a mean p = l and standard deviation o = 16. {a} What is the probability that the IQ of a randomlyselected indi vidual is between 9D and l l? {b} What is the probability that the average IQ in a random sample of 9 people is between 90 and Ill}? {e} What is the probability that no more than 5 people in a random sample of size 9 have IQ's between 90 and 110'?
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