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Question: A population has mean 12 and standard deviation 1.5.
a. Find the mean and standard deviation of X‾ for samples of size 90.
b. Find the probability that the mean of a sample of size 90 will differ from the population mean 12 by at least 0.3 unit, that is, is either less than 11.7 or more than 12.3.
consider the following frequency of demanddemandnbspnbspnbspnbspnbspnbsp relative
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Do people scoring higher in empathy show higher pain-related brain activity?'' Use simple linear regression analysis to answer the research question.
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How have terrorism and weapons of mass destruction shaped our world since 1500? How did they become big problems in the world today?
find the mean variance and standard deviation for the probability distribution given
A jar contains 8 red marbles, 9 blue marbles, and 6 green marbles. Two marbles are chosen at random. What is the probability that one is green and the other is blue?
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