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Test scores on a particular exam have a mean of 75 and standard deviation of 4, and that they have a bell-shaped curve. Suppose you

Test scores on a particular exam have a mean of 75 and standard deviation of 4, and that they have a bell-shaped curve. Suppose you take numerous random samples of size 100 from this population and calculate the sample mean for each one of them. Describe the shape and give the mean and standard deviation of the resulting frequency curve for the sample means.

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