For the following situations, would you collect information using a sample or a population? Why?

Statistics $201$ is a course taught at a university. Professor Rauch has taught nearly $1,500$ students in the course over the past $5$ years.

As part of a research project, you need to report the average profit as a percentage of revenue for the #$1-$ranked corporation in the Fortune $500$ for each of the last $10$ years.

You are looking forward to graduation and your first job as a salesperson for one of five large pharmaceutical corporations. Planning for your interviews, you will need to know about each company's mission, profitability, products, and markets.

You are shopping for a portable generator to provide electricity when you lose power. To buy the best generator, you need to estimate how much electricity your home consumes on a typical day.