I need help with my statistics homework :(

what is the probability that the sample mean is between M = 87 and M = 93 if the sample has n = 4, a mean (mew) of 90 and a standard deviation of 12?

you don’t have to answer the question for me, I just want to know WHERE to begin in terms of probability. I am so bad at it.

Answer #1

you dont have the formula for sample mean by any chance? because if you already have the mean (90) I’m not sure what you’re looking for…

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