In how many different ways can a test consisting of seven true-or-false questions be completed?
A)49
B)128
C)256
D)14
E)9

Name: In how many different ways can a test consisting of seven true-or-false questions be completed? A)49 B)128 C)256 D)14 E)9
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Question

Quizplus · Accepted Answer

Each question has 2 possible answers (true or false), and there are 7 questions. Thus, the number of different ways to complete the test is 2^7 = 128.

In How Many Different Ways Can a Test Consisting of Seven