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I need help w a-d the questions are at the top it says a-d 8.1.15 Suppose a simple random sample of size n = 64

I need help w a-d the questions are at the top it says a-d

8.1.15 Suppose a simple random sample of size n = 64 is obtained from a population with u = 84 and o = 24. (a) Describe the sampling distribution of x. (b) What is P (x > 89.1) ? (c) What is P (x 5 76.65) ? (d) What is P (82.35

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