WDU203cXuất hiện trong 6 đề thi
Which of the following is the best definition of a probability sample?
Các lựa chọn
AAlmost every member of your population has some chance to be selected for the survey.
BOnly those people who will probably answer the survey are sampled from the population.
CEvery member of your population has some chance to be selected for the survey.
DYou invite every member of the population to participate in the survey.