I need help with Mathematics homework, I think it is A and D

timer Asked: May 15th, 2015

Question description

Plz halp, 

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.


Five people in each of Janine’s classes are selected and asked for whom they intend to vote.


From a list of all students in Janine’s grade, 25 students are selected at random and asked for whom they intend to vote.


Every 10th student from a list of all students in Janine’s grade is selected and asked for whom the student intends to vote.


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.

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