Question

Help me with this hard math!!!?

Scott took a part time job as a pollster for the Stonebridge Mall. He was assigned to stand at the west entrance of the mall and approach every 100th person coming into the mall to ask a few questions. While counting the people who passed by, he skipped everyone that he knew. Identify the one piece of information that might be a source of bias.


A. He skipped everyone that he knew.

B. He stood at the west entrance of the mall.

C. He only approached people coming into the mall, not those going out.

D. He only asked every 100th person.

shou

Answer 1

B or C

Answer 2

i think it might be b

Answer 3

B C and D are all part of his assignment.. the answer is A obivously

Answer 4

a!

Answer 5

No, the answer is not A for sure.

Answer 6

reasoning?

Answer 7

Bias means partiality. His assignment cannot be assumed to be flawless, so the logic that part of his assignment is "correct" is flawed.

Answer 8

It can't be A, because people he knew would give a different answer.

Answer 9

It can't be D, because asking every hundred people is a fair way to choose out of a large group.

Answer 10

now im thinking it's C, because people who enter the mall may feel differently when leaving it.

Answer 11

Both B and C are biased,but I would say that B is more biased, because people could be more likely to go to the mall

Answer 12

for the west entrance.

Answer 13

And, actually, your reasoning is better than mine, so It's probably c.

Answer 14

agree to agree :D

Answer 15

so c? thanks :)

Answer 16

yw

Answer 17

xD

Answer 18

but, this was a crappy problem, because both B and C are biased.