Consider a small ferry that can accommodate cars and buses. The toll for cars is $3, and the toll for buses is $10. Let X and Y denote the number of cars and buses, respectively, carried on a single trip. Suppose the joint distribution of X and Y is as given in the table below.
y | ||||
p(x,y) | 0 | 1 | 2 | |
x | 0 | 0.025 | 0.015 | 0.010 |
1 | 0.050 | 0.030 | 0.020 | |
2 | 0.050 | 0.075 | 0.050 | |
3 | 0.150 | 0.090 | 0.060 | |
4 | 0.100 | 0.060 | 0.040 | |
5 | 0.050 | 0.030 | 0.095 |
Compute the expected revenue from a single trip. (Round your answer to two decimal places.)
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