Conduct the same survey but use the students in several classes or different grades. As a class, brainstorm factors that may alter the results of the survey. There are 25 students in your class. You asked six of them to complete your questionnaire. Every five years, Statistics Canada asks all residents of Canada for certain information.
Some households receive questionnaires requesting additional information.
Ray says the taller the basketball player, the more points she or he scores. Tell why each would or would not be an appropriate sample to use to verify his prediction.