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Mathematics · 2023 · 2 marks
CBSE 2023 · Region 4 · Set 1 · Q24
If a fair coin is tossed twice, find the probability of getting 'atmost one head'.
If a fair coin is tossed twice, find the probability of getting 'atmost one head'.
Marking-scheme solution
Total outcomes are HH, HT, TH, TT
Favourable outcomes are HT, TH, TT
\(\displaystyle \mathrm{P}(\) at most one head \(\displaystyle )=\frac{3}{4}\)
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CBSE Class 10 Mathematics past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.