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Find the mean, variance, and standard deviation of the number of wooden sailboats constructed in a month, using the probability distribution in
| x | p(x) |
| 2 | 02 |
| 3 | 02 |
| 4 | 03 |
| 5 | 0.1 |
| 6 | 01 |
| 7 | 0.05 |
| 8 | 0.05 |