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