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| 1. |
Through a two dice and find the probability of prime no. |
| Answer» Let A be the event of getting the sum as a prime number i.e. 2,3,5,7,11\xa0Elementary events favourable to event A are:(1, 1), (1, 2), (2, 1), (1, 4), (4, 1), (2, 3), (3, 2), (1, 6), (6, 1),(2, 5), (5, 2), (3, 4), (4,3) , (6,5) and (5, 6).Favourable number of elementary events = 15Hence, required probability{tex}= \\frac { 15 } { 36 } = \\frac { 5 } { 12 }{/tex} | |