If two coins are tossed simultaneously, find the probability of the event, “getting at least one head.”

Q.2 (B)(i) If two coins are tossed simultaneously, find the probability of the event, “getting at least one head.”

Doubtly Asked 25 Oct 2026 ssc 10th Save WhatsApp Report

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Answer: \(P(A) = \dfrac{3}{4}\)

\(S = \{\text{HH, HT, TH, TT}\}\), so \(n(S) = 4\).

Event A : getting at least one head, \(A = \{\text{HH, HT, TH}\}\), so \(n(A) = 3\).

\(P(A) = \dfrac{n(A)}{n(S)} = \dfrac{3}{4}\).

Doubtly AI · 25 Oct 2026 AI-verified · Oct 2026 Report

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