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प्रश्न
A coin is tossed twice. Find the probability of getting: two tails
बेरीज
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उत्तर
Two tails
Possible number of favourable outcomes = 1 (i.e. TT)
Total number of possible outcomes = 4
∴ P(E) = `"Number of favourable outcomes"/"Total number of possible outcomes"`
= `1/4`
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