Population variance is a. an unbiased estimator of sample ...

[schs14]

Population variance is
 a. an unbiased estimator of sample variance.
  b. equivalent to the standard error of the mean.
  c. always unknown when using probability sampling.
  d. a measure of the spread of values from their mean.
  e. always known when using probability sampling.

Question 2

In food consumption, the Southwest exhibits a stronger regional preference for
 a. health food.
  b. spicy food.
  c. pork barbeque.
  d. Asian food.
  e. mild foods.

[matt95]

Answer to Question 1

d

Answer to Question 2

B