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Multiple choice general knowledge math & puzzles

what's the probability of getting atleast 3 heads out of 4 tosses by a fair coin

  1. 5/16

  2. 1/4

  3. 3/16

  4. 7/16

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Total outcomes for 4 tosses = 2^4 = 16. 'At least 3 heads' includes 3 heads (4C3 = 4 ways) and 4 heads (4C4 = 1 way). Total favorable outcomes = 4 + 1 = 5. Thus, the probability is 5/16.

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