A simple random sample of size n=81is obtained from a population with μ=82 and σ=36. ​(a) Describe the sampling distribution of x. ​(b) What is P x>86.4​? ​(c) What is P x≤73.6​? ​(d) What is P 77.4

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A: Since we only answer up to 3 sub-parts ,we will answer the first 3. Please resubmit the question and…

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