Question

A test has five questions. To pass the test, at least three of the questions must be answered correctly. question ----> Find the probability that Mark guesses 4 questions correctly.

Answer 1

1/5

Explanation:

Total Question no. 5

Three must be answer correctly so 3/5 to pass

and 2/5 to fail

So 1/5 because to pass the test he can answer it correctly only one time