passwella.
Menu

WAEC Mathematics 1991 (August) Question 41

Question 41

Probability

Mrs. Jones is expecting a baby. The probability that it will be a boy is ½ and probability that the baby will have blue eyes is ¼. What is the probability that she will have a blue-eyed boy?

  1. A.1/8
  2. B.¼
  3. C.3/8
  4. D.½
  5. E.3/4
Show the answer and explanation

Answer: A (1/8)

Explanation

Multiply the independent probabilities: ½ × ¼ = 1/8.