OAU Post-UTME Mathematics 2014 Question 8

Question 8

Probability

Two coins tossed; find the probability of having at least two heads

  1. A.½
  2. B.¾
  3. C.¼
  4. D.1
Show the answer and explanation

Answer: C (¼)

Explanation

With two coins, at least two heads means HH, 1 of the 4 outcomes: ¼.