Find probability that freshman selected finish in six years
Suppose that 65% of all those who enroll at the university of Iowa finish in 6 years. What is the probability that 5 freshman selected at random will all finish in 6 years?
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Assuming all sex distributions to be equally probable, what proportion of families with exactly six children should be expected to have three boys and three girls?
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A certain type of thread is manufactured with a mean tensile strength of 78.3 kilograms and a standard deviation of 5.6 kilograms. How is the variance of the sample mean changed when the sample size is?
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There is a 50-50 chance that the queen carries the gene of hemophilia. If she is a carrier, then each prince has a 50-50 chance of having hemophilia independently.
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