mya1318
30.10.2020 •
Mathematics
(a) (4 points) Write down the four assumptions required to make inferences for a pop- ulation given a sample. (b) (4 points) Propose an unbiased estimator for the average annual income in the county. Show that it's unbiased. (c) (4 points) Find the variance of your proposed estimator. Detail how the variance changes as the sample size increases. Is this change a desirable feature
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Ответ:
(-2 3/4) - (1 / 8) = -2.875