1. Explain the meanings of the terms population and sample. 2. The cholesterol levels of the 800 residents of Land-oLakes, Wisconsin, were recently collected and organized in a frequency distribution....

1. Explain the meanings of the terms population and sample.

2. The cholesterol levels of the 800 residents of Land-oLakes, Wisconsin, were recently collected and organized in a frequency distribution. Do these data represent a sample or a population? Explain your answer.

3. Explain the difference between frequency, relative frequency, and relative frequency density. What does each measure?