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प्रश्न
Two dice (each bearing numbers 1 to 6) are rolled together. Find the probability that the sum of the numbers on the upper-most faces of two dice is 4 or 5.
उत्तर
When two dice are rolled, total number of possible outcomes = 36
Favorable outcomes for the sum of number 4 or 5 are:
{(1, 3),(1, 4),(2, 2),(2, 3),(3, 1),(3, 2),(4, 1)}
Number of favorable outcomes = 7
P(getting a sum of 4 or 5) = `7/36 `
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