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
Answer:
a. are the rates of return on a company's capital stock.
Explanation:
Dividends are are earnings distributed to company's share holders as a result of the shares held by them in the company.
When a company is formed I.e company quoted on the stock exchange, they are usually financed by shareholder's fund.
A share is the unit of capital of a company allocated to an individual while a shareholder is someone who has share(s) in the company. Shareholders are owners of the company. They are also investors and so they expect returns on their investment at the end of each financial period.
These returns are paid to the share holders as dividened which are the rates of returns on a company's capital stock.
19.27+88.22+321.77=429.26
4.5+2=6.5
429.26 x 1.065 = 457.1619
Answer = $457.16
Answer:
The point p should be located to 4.42 km far from the refinery
Explanation:
Minimum of these costs occurs when <em>x = 1/
</em> , so <em>distance </em>should be <em>m</em> km to the east of the refinery.
<em>m = 5 - x </em>
<em>m = 5 - 1/</em>
<em />
m = 4.42 km
