Ross wants to conduct a survey of his 400 classmates to determine which candidate for class treasurer, Warren or Willa, is in the lead in the upcoming election.
Ross will ask the question, “If the election were today, which candidate would get your vote?”
Which of the following methods of surveying his classmates will allow Ross to make valid conclusions about which candidate is in the lead?
Select all that apply.
*Ask all of Warren's friends.
*Ask the other members of Willa's cheerleading squad.
*Put the names of all the students in a hat, and draw 100 names. Ask those students whose names are drawn.
*Ask every student in the class.
