WAEC Mathematics 2018 Question 28

Question 28

Probability

The table shows the distribution of goals scored by 25 teams in a football competition.
Number of goals: 1, 2, 3, 4, 5, 6, 7
Number of teams: 3, 1, 6, 6, 4, 2, 3
Calculate the probability that a team selected at random scored at most 3 goals.

  1. A.3/25
  2. B.⅕
  3. C.6/25
  4. D.⅖
Show the answer and explanation

Answer: D (⅖)

Explanation

3 + 1 + 6 = 10 teams scored 3 or fewer: 10/25 = 2/5.