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From a well - shuffled pack of cards, a card is drawn at random. Find the probability of its being either a queen or a heart. |
Answer» Correct Answer - `4/13` Clearly, n(S) = 52. Let `E_(1)` = event of getting a queen, and `E_(2)` = event of getting a heart. Then, `E_(1) nn E_(2)` = event of getting a queen of hearts. `therefore n(E_(1)) = 4, n(E_(2)) = 13 and n(E_(1) nn E_(2)).` Now, use `P(E_(1) uu E_(2)) = P(E_(1)) + P(E_(2)) - P(E_(1) nn E_(2)).` |
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