131k views
2 votes
7. In how many ways can the same 5-question True / False quiz be

answered if it is okay to leave questions unanswered? (Hint: You now
have 3 choices for each question.)
Answer:

2 Answers

1 vote

Answer: It can be answered 243 ways

User AnswerDroid
by
5.4k points
2 votes

Answer:

243 ways

Explanation:

Calculating the number of posible outcomes:

We have n trials.

Each trial has m possible outcomes.

The total number of outcomes is:


T = m^(n)

In this question:

5 questions, that is, 5 trials, so
n = 5

Each question has 3 options(True, false or unanswered). So
m = 3

How many ways?


T = 3^(5) = 243

User DanielBlazquez
by
5.6k points