Question

A pharmacy wants to survey its customers to find out which brand of toothpaste they prefer.



Which survey methods are likely to be biased?



Choose all answers that are correct.



A.


A survey is sent to the customers who are on the pharmacy’s frequent buyer list.


B.


One hundred people from the pharmacy’s customer list are selected at random, called on the phone, and asked.


C.


Those customers who buy toothpaste with a coupon are selected, and the toothpaste brand they purchased is recorded.


D.


Every 10th customer who enters the p

Answer 1

D.


Every 10th customer who enters the pharmacy on 1 day is selected and asked.

Answer 2

I think A and C are biased

Answer 3

@Nnesha @Haseeb96 help please...

Answer 4

Well

Answer 5

A and C are definitely Bias,

Answer 6

I'm think D too. What about that?

Answer 7

Technically anyone can be bias

Answer 8

But no D is not Bias, since its random

Answer 9

So just A and C?

Answer 10

My choice would be just A and C, does anyone else have input???

Answer 11

D

Answer 12

Well, the way @MeowLover17 explained it would not be bias...

Answer 13

Yea, honestly this question is a bad question but i think A and C would be the only possibilities where those people have been chosen on purpose compared to being chosen randomly.

Answer 14

Hope i helped you, good luck answering it :D

Answer 15

+1 medal and +1 fan :D

Answer 16

Yes, you did thank you!