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प्रश्न
When two coins are tossed, what is the probability that two heads are obtained?
उत्तर
Sample space when two coins are tossed (S) = {HH, TT, HT, TH}
n(S) = 4
Event of getting two heads (A) = {HH}
n(A) = 1
Probability of getting two heads P(A)
= `("n"("A"))/("n"("S"))`
= `1/4`
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