Question

13. A true or false test has 8 questions. What is the probability of guessing the correct answers to all the questions?

A. 1/10
B. 1/16
C. 1/64
D. 1/256

Answer 1

The probability of guessing a correct answer is 1/2. The probability of correctly guessing the answers to 8 questions is given by:
\[P(all\ 8\ correct)=(\frac{1}{2})^{8}=you\ can\ calculate\]

Answer 2

CX thanks

Answer 3

You're welcome :)