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

The survey method that is more likely to be biased is : C. Those customers who buy toothpaste with a coupon are selected and the toothpaste brand they purchased is recorded

Buying a product with a coupon tend to be a matter of discount price rather than a matter of preference

hope this helps

Answer 2

The answer would be A.