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WAEC Mathematics 2014 Question 5

Question 5

Probability

The bar chart shows the scores of some students in a test. If one student is selected at random, find the probability that he/she scored at most 2 marks.

Diagram for this question
  1. A.11/18
  2. B.11/20
  3. C.7/22
  4. D.5/19
Show the answer and explanation

Answer: B (11/20)

Explanation

Scores 0, 1 or 2: 4 + 2 + 5 = 11 of the 20 students, so the probability is 11/20.