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WAEC Mathematics 2008 Question 48

Question 48

Probability

Given the sets A = {2, 4, 6, 8} and B = {2, 3, 5, 9}. If a number is picked at random from each of the two sets, what is the probability that their product is odd?

  1. A.1
  2. B.3/4
  3. C.1/4
  4. D.0
Show the answer and explanation

Answer: D (0)

Explanation

Every number in A is even, and an even number times anything is even, so an odd product is impossible: probability 0.