In a simultaneous throw of a pair of dice, what is the probability of getting a total more than 8? |
$\frac{5}{12}$ $\frac{5}{18}$ $\frac{1}{4}$ $\frac{7}{18}$ |
$\frac{5}{18}$ |
The correct answer is Option (2) → $\frac{5}{18}$ 1. Total Possible Outcomes When two dice are thrown, each die has 6 possible outcomes. Therefore, the total number of combinations is: $6 \times 6 = 36$ 2. Identify Favorable Outcomes A "total more than 8" means the sum must be 9, 10, 11, or 12. Let's list the pairs $(d1, d2)$ for each sum:
Total number of favorable outcomes = $4 + 3 + 2 + 1 = \mathbf{10}$ 3. Calculate the Probability The probability ($P$) is the ratio of favorable outcomes to total outcomes: $P = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}}$ $P = \frac{10}{36}$ Now, simplify the fraction by dividing both the numerator and the denominator by 2: $P = \frac{5}{18}$ |