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A fair coin is tossed twice. What is the probability of getting at least one head?

Competition practiceProbability & Permutation
  • A1/2
  • B1/4
  • C3/4
  • D2/3

Step-by-Step Solution

Outcomes are HH, HT, TH, TT; three of four contain at least one head, so probability = 3/4.
Answer: C) 3/4

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