Question
The probability that a bomb dropped from a plane over a bridge will hit the bridge is $\frac{1}{5}$. Two bombs are enough to destroy the bridge. If $6$ bombs are dropped on the bridge, find the probability that the bridge will be destroyed.
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| Detail | Price (x) | Supply (y) |
| Average | 30 | 500 |
| Variance | 25 | 10000 |
| Co - variance = 400 |