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 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 .

Find the probability of guessing at least 6 out of 10 answers in True false type examination

What is Varun's overall percentage in the examination?

There are 70 students in a class out of which 60% are boys. If 20 girls passes an examination then find the probability that a randomly selected girl would have passed the examination.

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?

In an examination 74% of the candidates passed and 156 failed. The candidates who appeared in the examination were

The average of marks obtained by 120 candidates in a certain examination is 35. If the average marks of passed candidates is 39 and that of the failed candidates is 15, what is the number of candidates who passed the examination?