Question

Which of the following is a random sample? *

1 point
A. A radio DJ asks the first 10 listeners who call in if they liked the last song.
B. 20 customers at a chicken restaurant are surveyed on their favorite food.
C. A teacher put the names of students in a hat and pulled out 10.
D. Rebecca used an email poll to survey 100 students about how often they use the internet.

Answer 1

C.

A teacher put the names of students in a hat and pulled out 10.

Explanation:

All the other answers had some factor which would cause the answer to lean a certain way. For example, for answer D, Rebecca sent an email, which can be only sent using the internet, to ask how long people are on the internet. All the people that got the email probably use the internet longer than an average person does, making the answer, biased.