Which of the following statements best describes the relationship between a parameter and a statistic?

a. A parameter is usually larger than a statistic.

b. A parameter is used to estimate a statistic.

c. A parameter has a sampling distribution with the statistic as its mean.

d. A parameter has a sampling distribution that can be used to determine what values the statistic is

likely to have in repeated samples.

e. A statistic is used to estimate a parameter.