The table above gives the scores of a group of students in an English Language test If a student is chosen at random from the group, what is the probability that the scored at least 6 marks?

The table above gives the scores of a group of students in an English Language test

If a student is chosen at random from the group, what is the probability that the scored at least 6 marks?

The correct answer is C. 1/4

Probability = 5/20 = 1/4