Question

you are trying to estimate the number of people who are in favor of switching the date of prom from may to april. you decide to survey some students and ask them if they would rather have prom in april or may. you setup a table in the cafeteria and anybody that wants to take the survey can. systematic sample convenience sample self selected sample random sample

Explanation:

A self - selected sample is one where individuals choose whether or not to participate in the survey. In this case, anyone who wants to take the survey can, which means it is a self - selected sample. A systematic sample has a set pattern for selection, a convenience sample is based on ease of access but not necessarily self - selection, and a random sample has each member of the population having an equal chance of being selected randomly without self - selection being the main factor.

Answer:

C. Self Selected Sample