Answer:
Variance = 0.02141851
Explanation:
We first calculate the mean for the stocks
Mean = (0.1858 - 0.0558 + 0.2081) / 3
Mean = 0.3381 / 3
Mean = 0.1127
Variance = [(0.1858 - 0.1127)^2 + (- 0.0558 - 0.1127)^2 + (0.2081 - 0.1127)^2] / 3 -1
Variance = [0.0731^2 + (-0.1685^2) + 0.0954^2] / 2
Variance = 0.00534361 + 0.02839225 + 0.00910116 / 2
Variance = 0.04283702 / 2
Variance = 0.02141851
The variance of returns is 0.02141851
Answer:
3 years
Explanation:
The computation of the time period is shown below
Present value of annuity = Annuity × [1 - (1 + interest rate)^-time period] ÷ rate
$2,000 = $734.42 × [1 - (1.05)^-n] ÷ 0.05
$2,000 = $14,688.4 × [1-(1.05)^-n]
1-(1.05)^-n = ($2000 ÷ $14,688.4)
(1.05)^-n = 1 - ($2000 ÷ $14,688.4)
( 1 ÷ 1.05)^n = 0.86383813
Now take the log to the both sides
n × log(1 ÷ 1.05) = log0.86383813
n = log0.86383813 ÷ log (1 ÷ 1.05)
= 3 years
Answer:
The correct answer is D.
Explanation:
Giving the following information:
Central Supply purchased a new printer for $67,500. The printer is expected to operate for nine (9) years, after which it will be sold for salvage value (estimated to be $6,750).
Annual depreciation= 2*[(original cost - residual value)/estimated life (years)]
Year 1= 2*[(67,500 - 6,750)/9]= $13,500
Exchange tactics could be the most popular downward influence tactics....
The correct answer is choice C.
Performance, polygraph and drug tests are sometimes required by employers in various fields in order to screen applicants.
