Resolution:
## Figure 5.
Probability space of . X ≥ k_{1 }∧ Y ≥ k_{2 }is a subset of X + Y ≥ k_{1 }+ k_{2}P(X ≥ k_{1 }∧ Y ≥ k_{2}) is the sum of the probabilities taken over all values in the dark gray space, while
P(X + Y ≥ k_{1 }+ k_{2}) is the sum of the probabilities taken over both the light gray and dark gray spaces.
Carlson |