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JAMB Mathematics 2010 Question 50

Question 50

Probability

If three unbiased coins are tossed, find the probability that they are all heads.

  1. A.1/8
  2. B.1/3
  3. C.1/6
  4. D.1/9
Show the answer and explanation

Answer: A (1/8)

Explanation

Each coin is heads with probability ½, so all three is (½)3 = 1/8.