Multiple choice

Two coins are tossed simultaneously What is the probability of getting two heads?

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

When tossing two coins, the sample space is {HH, HT, TH, TT}. There is only one outcome with two heads, so the probability is 1/4.

AI explanation

When two coins are tossed simultaneously, the total number of possible outcomes is 4, which are HH, HT, TH, and TT. The probability of an event is the ratio of favorable outcomes to total outcomes. Since there is only one favorable outcome of getting two heads, the required probability is 1/4.

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