Multiple choice

Two unbiased coins are tossed. Find the probability of getting no heads.

  1. 3/8

  2. 3/4

  3. 1/2

  4. 1/4

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When two unbiased coins are tossed, the sample space consists of four equally likely outcomes: HH, HT, TH, and TT. The event of getting no heads corresponds only to the outcome TT, so the probability is 1/4.

AI explanation

When two coins are tossed, the total number of possible outcomes is 2^2, which equals 4. The only outcome with no heads is getting tails on both coins, making the number of favorable outcomes 1. The probability is 1 divided by 4. The result is 1/4.

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