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
I don’t even know to be honest only commenting to get some points ....:
John Kotter’s theory for leading can help business staffs to
improve their performance especially in completing assignments and improving
teamwork. His theory centers on eight
steps:
1.
Creating urgency to spur change.
2.
Forming a powerful coalition from people of
diverse talents.
3.
Make a vision of change that would inspire and
rally your group.
4.
Communicate that vision so that all of you
understand what needs to be done.
5.
Remove obstacles that would impede your goals.
6.
Create short-term wins that would help in the
short run but will contribute in the long run.
7.
Build on change while the momentum is there.
8.
Anchor that change as a model for others to
follow.
Answer:
Irrelevant to the decision of whether to discontinue a product line because they will not differ between alternatives.
Explanation:
Unavoidable fixed costs can be defined as the costs that is sustained by an organization irrespective of if an activity is carried out or not.
Unavoidable costs are the costs that are encountered by a lot of businesses, this cost cannot be prevented even though production activities in the company are suspended in the short-run. These fixed costs are unavoidable and uncontrollable.
Unavoidable fixed costs is as a result of the various risks incurred by an organization inorder to stay relevant in the market. Example of unavoidable costs include tax payment, rental payments.