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Two friends were born in 1984 .The ptobability that they have same birth date is.a. 1/365b. 1/366c. 2/365d. 3/365 |
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Answer» Two friends have any one of the 366 days on the year 1984 as her birthday. [Year 1984 is a leap year] Total number of outcomes in which two friends may have their birthday = 366 x 366 Two friends may have same birthday on any one of the 366 Days Of The Year 1984. Number of favourable outcomes in which Two friends will have same birthday = 366 Probability = Number of favourable outcomes/Total number of outcomes. Probability that both have same birthday = 366/(366 x 366) = 1/366. Hence,the probability that they both have the same birthday = 1/366. |
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