Homework SourseCompute the mean and variance of the following probability d
Compute the mean and variance of the following probability distribution. (Round your answers to 2 decimal places.)
| Compute the mean and variance of the following probability distribution. (Round your answers to 2 decimal places.) |
Solution
Consider:
Thus,
E(x) = Expected value = mean = 9.7 [ANSWER]
Var(x) = E(x^2) - E(x)^2 = 8.91 [ANSWER]
| x | P(x) | x P(x) | x^2 P(x) |
| 4 | 0.1 | 0.4 | 1.6 |
| 7 | 0.25 | 1.75 | 12.25 |
| 10 | 0.3 | 3 | 30 |
| 13 | 0.35 | 4.55 | 59.15 |
