Question

A true-false test has 4 questions. What is the chance of answering all questions correctly by guessing? Round your answer to the nearest 0.1%, if necessary.

Answer 1

The chance of answering a question correctly in a true or false test is;

`(1)/(2)=0.5`

Thus, the chance of answering all 4 questions correctly is;

`\begin{gathered} (0.5)^4=0.0625 \\ \\ =6.3\text{ \%} \end{gathered}`

ANSWER: 6.3%