Multiple choice

What is the probability of getting an even number of heads in three tosses of a coin?

  1. 3/8

  2. 1/8

  3. 5/8

  4. 4/8

  5. 2/8
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A Correct answer
Explanation

The sample space for the given event is 2 * 2 * 2 = 8. The possible events when tossing a coin three times are, {HTT, TTT, THT, THH, TTH, HHH, HHT, HTH}. Here, there are three events in which even number of heads are there. Hence, the probability will be 3/8.

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