If two dice are rolled 12 times and getting a total greater than 4 is considered as a success, then which of the following statements are correct? (A) The probability of getting a total greater than 4 in a single throw of the pair of dice is 5/6. Choose the correct answer from the options given below: |
(A), (B) and (D) only (A) and (D) only (A), (B), (C) and (D) (B) and (C) only |
(A), (B) and (D) only |
The correct answer is Option (1) → (A), (B) and (D) only Total outcomes when two dice are rolled = 36 Number of outcomes with total ≤ 4: 6 Probability of total ≤ 4 = $\frac{6}{36} = \frac{1}{6}$ ✔ Probability of total > 4 = $1 - \frac{1}{6} = \frac{5}{6}$ ✔ Mean (expected value) for binomial: $\mu = n p = 12 \times \frac{5}{6} = 10$ ✔ Variance for binomial: $\sigma^2 = n p (1 - p) = 12 \times \frac{5}{6} \times \frac{1}{6} = \frac{10}{6} = \frac{5}{3}$ ❌ Correct statements: (A), (B), (D) |