Multiple choice

If two coins are tossed then find the probability of the events that at the most one tail turns up

  1. $\displaystyle \frac{1}{4}$
  2. $\displaystyle \frac{1}{3}$
  3. $\displaystyle \frac{1}{2}$
  4. $\displaystyle \frac{3}{4}$
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D Correct answer
Explanation

Possible outcomes for two coins: {HH, HT, TH, TT}. At most one tail means zero or one tail: {HH, HT, TH}. Probability = 3/4.

AI explanation

When two coins are tossed, the sample space is HH, HT, TH, and TT, giving 4 total outcomes. The favorable outcomes for at most one tail are HH, HT, and TH, giving 3 favorable outcomes. The probability is 3/4.

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