In how many ways can a seven-question true-false exam be answered? (Assume that no questions are omitted. )
A)138
B)128
C)133
D)118
E)123

Name: In how many ways can a seven-question true-false exam be answered? (Assume that no questions are omitted. ) A)138 B)128 C)133 D)118 E)123
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Question

In how many ways can a seven-question true-false exam be answered? (Assume that no questions are omitted. ) ​
A)138
B)128
C)133
D)118
E)123

Quizplus · Accepted Answer

Each question can be answered in 2 ways (True or False). Therefore, the total number of ways to answer 7 questions is 2^7 = 128.

In How Many Ways Can a Seven-Question True-False Exam Be