Three coins are tossed once. Probability of getting no head is:

The correct answer is Option (1) → \(\displaystyle\frac{1}{8}\)

Each coin can fall in 2 ways, so three coins give \(2\times2\times2=8\) equally likely outcomes. “No head” means all three show tails.

• Favourable outcome: TTT only, so 1 outcome

• Probability \(=\displaystyle\frac{1}{8}\)