imo class 12 probability

Three coins are tossed simultaneously. Let X be the random variable representing the number of heads. The value of P(X=2) is:

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Three coins are tossed simultaneously. Let X be the random variable representing the number of heads. The value of P(X=2) is:

  • A. 1/8
  • B. 3/8
  • C. 1/2
  • D. 5/8

Answer: B) 3/8

Explanation: Out of 8 possible outcomes, 3 have exactly 2 heads (HHT, HTH, THH). So, P(X=2) = 3/8.

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