Asked by Anonymous
Suppose you are taking a true-false test consisting of 5 questions. In how many ways can you answer the question?
Answers
Answered by
Reiny
The first question can be answered in 2 ways
for each of those, the 2nd question can be answered in 2 ways, so 2^2 or 4 so far
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number of ways = 2^5 = 32
for each of those, the 2nd question can be answered in 2 ways, so 2^2 or 4 so far
...
number of ways = 2^5 = 32