Janine wishes to conduct a poll to predict how many students will vote for her for class president.. which polling methods are likely to be biased? . choose all answers that are correct..
a.
five people in each of janine’s classes are selected and asked for whom they intend to vote.
b.
from a list of all students in janine’s grade, 25 students are selected at random and asked for whom they intend to vote.
c.
every 10th student from a list of all students in janine’s grade is selected and asked for whom the student intends to vote.
d.
janine chooses 5 of her friends and asks each to select another 5 students. these 25 students are asked for whom they intend to vote.