Question: a. When would the mean grade in a class on a final exam be considered a statistic? b. When would it be considered a parameter?

a. When would the mean grade in a class on a final exam be considered a statistic?

b. When would it be considered a parameter?

  • c. Define bias in terms of expected value.

  • d. Is it possible for a statistic to be unbiased yet very imprecise? Can it be accurate but biased?

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