In an examination, the probability of a candidate solving a questions is `(1)/(2)` Out of given 5 question in the examination, what is the probability that the candidate was able to solve at least 2 questions?

the overall percentage of failures in a certain examination is 40 what is the probability that out of a group of 6 candidates at least 4 passed the examination ?

On a multiple choice questions with three possible answers for each of the five questions, what is the probability that a candidate would get 4 or more correct answers just by guessing ?

The overall percentage of failures in a certain examination is 40. What is the probability that out of a group of 6 candidates at least 4 passed the examination?

The overall percentage of failures in a certain examination is 40. What is the probability that out of a group of 6 candidates at least 4 passed the examination?

In an examination there are twenty multiple choice question each of which is supplied with four possible answers. What is the probability that a candidate would score 80% or more in the answer to these questions ?

The overall percentage of passes in a certain examination is 80 . If six candidates appear in the examination what is the probability that at least five pass the examination .