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Can someone explain this question with working for me please. 4. Random samples of size 49 are taken from a population that has 200 elements,

Can someone explain this question with working for me please.

4. Random samples of size 49 are taken from a population that has 200 elements, a mean of 180, and a variance of 196. The distribution of the population is unknown. Find the mean and the standard error of the mean

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