A stock had returns of 17.88 percent, −5.16 percent, and 20.39 percent for the past three years. What is the variance of the returns?

Answers

Answer 1

Answer:

Variance of the return = 0.01983

Explanation:

[tex]S^{2}[/tex]= Σ[tex](X-X)^{2}[/tex]/ N - 1

Mean return = 17.88% + -5.16% + 20.39% = 11.0367%  

Variance = [(17.88% - 11.0367%)2 + (-5.16% - 11.0367%)2 + (20.39% - 11.0367%)2] /(3 - 1)

Variance = [0.004683 + 0.026233 + 0.008748]/2

Variance = 0.01983


Related Questions

A project has estimated annual net cash flows of $56,600. It is estimated to cost $339,600.

Required:
Determine the cash payback period.

Answers

Answer:

It will take exactly 6 full years to cover for the initial investment.

Explanation:

Giving the following information:

Cash flow= $56,600

Initial investment= 339,600

The payback period is the time required for the cash flow to cover the initial investment:

Year 1= 56,600 - 339,600= -283,000

Year 2= 56,600 - 283,000= -226,400

Year 3= 56,600 - 226,400= -169,800

Year 4= 56,600 - 169,800= -113,200

Year 5= 56,600 - 113,200= -56,600

Year 6= 56,600 - 56,600= 0

It will take exactly 6 full years to cover for the initial investment.