In principle, a distribution can be formed by which answer? a. Calculating the mean of all the possible samples of a given size and dividing by the variance. b. Using the sample’s mean and variance divided by the population’s parameter. c. Randomly estimating the population variance from the various samples of the same size, and using the sample mean in place of the population mean. d. Randomly taking a very large number of samples from a population, each of the same size, and making a distribution from their means.

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A: Population mean = 154Variance = 36Standard error of the sample mean = 0.50

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A: As per company guidelines I solved exactly three subparts of this question.thank you

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