Multiple choice

Three coins are tossed together. The probability of getting exactly two heads is-

  1. $\dfrac {5}{8}$
  2. $\dfrac {3}{8}$
  3. $\dfrac {1}{8}$

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When tossing three coins, there are 2^3 = 8 total outcomes. The outcomes with exactly two heads are (H,H,T), (H,T,H), and (T,H,H), which is 3 favorable outcomes. Thus, the probability is 3/8.

AI explanation

When three coins are tossed, the total number of outcomes is 2^3, which equals 8. The favorable outcomes for getting exactly two heads are HHT, HTH, and THH, totaling 3 ways. Using the classical probability formula, the probability is 3 divided by 8, which is 3/8.

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