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A coin is tossed. What is the probability of getting:
(i) a tail? (ii) ahead?

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On tossing a coin once,
Number of possible outcome = 2

(i) Favourable outcomes getting a tail = 1

⇒ Number of favourable outcomes = 2

∴ P(E) = Number of favourable outcomes/Number of all possible outcome

= 1/2

(ii) a head

Similarly, Favourable outcome getting a head = 1

But number of possible outcome = 2

∴ P(E) = Number of favourable outcome/Number of all possible outcome

= 1/2

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