E(X) = 0(0.7) + 1(0.2) + 2(0.1) = 0.2 + 0.2 = 0.4
The expected daily loss due to blackouts = 0.4 * $500 = $200
Var(X) = 0(0.7 - 0.4)^2 + 1(0.2 - 0.4)^2 + 2(0.1 - 0.4)^2 = 0.04 + 0.18 = 0.22
The expected daily variance due to blackouts = 0.22 * $500 = $110
The answer would be y = 2 over 3x - 4
Answer: A
Step-by-step explanation: with my calculation, and the information you have give i have to say it is A.
The y-coordinate of point T would be -4.5 the whole ordered paid would be (-3,-4.5).
