Question

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Q. A coin tossed twice. Find the probability of getting at least one head.

Answer 1

Dear Student!

The outcomes obtained by tossing two coins simultaneously are HH, HT, TH and TT.

So, a total of 4 outcomes are obtained by tossing two coins.

$$\begin{gathered} \mathrm{Favourable}\mathrm{outcomes}\mathrm{for}\mathrm{at}\mathrm{least}\mathrm{one}\mathrm{head}\mathrm{are} \\ \mathrm{HH},\mathrm{HT},\mathrm{TH} \\ \mathrm{P}\left(\mathrm{At}\mathrm{least}\mathrm{one}\mathrm{head}\right)=\frac{3}{4}\mathrm{ANS}... \end{gathered}$$

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