Expected value of the sum
200 draws are made with replacement from a box of numbered tickets; these tickets are labeled either -2 or 3. Is it possible for the expected value of the sum to be 50? Justify your answer
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What is the sample mean of the values. What is the sample standard deviation of the values in the dataset. What is the population mean of the distribution from which the dataset was drawn?
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A simple random sample of 300 properties is taken from a collection of 9,500 properties, 3,000 of which do not have central air conditioning. Estimate the chance that at least 35% of the 300 properties in the sample do not have central air conditi
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