Question

Im confused.

Which of these is an example of a random sample?

A.Customers buying a new cell phone are surveyed about cell phone plans.

B.A phone survey is conducted using twenty names randomly taken from the phone book.

C.Every twentieth caller to an independent radio station receives tickets to a concert.

D.A phone plan company surveys people on the beach to see how well they are receiving service, and uses this information in future advertising.

Answer 1

@perl

Answer 2

B

Answer 3

B. because it is choosing names randomly.

Answer 4

Thx