A researcher wants to survey student opinions about campus f…

A researcher wants to survey student opinions about campus food services at a large university with 30,000 students. To ensure every student has an equal chance of being included in the survey, she obtains a list of all enrolled students and uses a computer program to select 500 names by picking every 60th name from the randomized list. This selection method is an example of:

President Joe Biden makes a speech to the American people wh…

President Joe Biden makes a speech to the American people where he appeals directly to them about health care policy. He encourages them to contact their members of Congress and tell them to support his policy.  Which of the following terms describes what he is doing?