A numerical description of a population characteristic.

A numerical description of a sample characteristic

Is the following a parameter or statistic:

In a survey of a sample of high school students, 43% said that their mother has taught them the most about managing money.

Is the following a parameter or statistic?

The average annual salary for 35 of a company's 1200 accountants is $68,000.

Is the following a parameter or statistic?

In a recent year, the average math scores for all graduates on the ACT was 21.1.