When two dice are thrown together, each die has 6 faces. The total number of possible outcomes is: \[ 6 \times 6 = 36 \] The favorable outcomes for getting the same number on both dice are: \[ (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6) \] There are 6 favorable outcomes. Therefore, the probability of getting the same number on both dice is: \[ \frac{6}{36} = \frac{1}{6} \]
The correct option is (C): \(\frac{1}{6}\)
If A is any event associated with sample space and if E1, E2, E3 are mutually exclusive and exhaustive events. Then which of the following are true?
(A) \(P(A) = P(E_1)P(E_1|A) + P(E_2)P(E_2|A) + P(E_3)P(E_3|A)\)
(B) \(P(A) = P(A|E_1)P(E_1) + P(A|E_2)P(E_2) + P(A|E_3)P(E_3)\)
(C) \(P(E_i|A) = \frac{P(A|E_i)P(E_i)}{\sum_{j=1}^{3} P(A|E_j)P(E_j)}, \; i=1,2,3\)
(D) \(P(A|E_i) = \frac{P(E_i|A)P(E_i)}{\sum_{j=1}^{3} P(E_i|A)P(E_j)}, \; i=1,2,3\)
Choose the correct answer from the options given below: