Answer:
0.4
Explanation:
This problem has been solved using the method of integration.
We are required to solve for the probability that it takes Robby between 29 and 39 minutes to go grocery shopping
= X~U(20,45)
= 1/45-20
= 1/25
Then we get computation for p[29<x<39]
When we take the integrals with x = 1/25
We get
Probability that it takes Robby between 29 and 39 minutes to go shopping to be 0.4
Answer:
40
Explanation:
According to Ricardian theory, any change in budgets deficits or surpluses should be completely offset by an equal change in private savings.
In this case, the original amount of private savings was 80, but since the budget deficit decreased by 40, then the private saving should also decrease by 40. The total private saving = 80 - 40 = 40
Answer:
(a) E(X) = 3
(b) Var(X) = 12.1067
Explanation:
(a) E[X]
E[X]T = E[X]T=A + E[X]T=B + E[X]T=C
= (2.6 + 3 + 3.4)/3
= 2.6 (1/3) + 3(1/3) + 3.4(1/3)
= 2.6/3 + 1 + 3.4/3
= 3
(b) Var (X) = E[X²]−(E[X])²
Recall that if Y ∼ Pois(λ), then E[Y 2] = λ+λ2. This implies that
E[X²] = [(2.6 + 2.6²) + (3 + 3²) + (3.4 + 3.4²)]/3
= (9.36 + 12 + 14.96)/3
= 36.32/3
= 12.1067
Var(X) = E[X²]−(E[X])²
= 12 - 3²
= 12.1067 - 9
= 3.1067
No, Because Harriet had no knowledge of the painting for her house, While there was an added benefit. There is no quasi-contract at all.
