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Consider a random sample of size n=4 taken without replacement rom a finite population with
N=10. Suppose that ci=2i+3,i=1,2,,N. (a)Find the variance of the sample mean. (b) Let
Y=5X1+4X3+8. Find the variance of Y.

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Consider a random sample of size n=4 taken without replacement rom a .pdf

  • 1. Consider a random sample of size n=4 taken without replacement rom a finite population with N=10. Suppose that ci=2i+3,i=1,2,,N. (a)Find the variance of the sample mean. (b) Let Y=5X1+4X3+8. Find the variance of Y.