problem: 5 investment alternatives have the following returns and standard deviations of returns.
Returns

Standard

Alternative

Expected Value

Deviation

A

$5,000

$1,200

B

4,000

$600

C

4,000

$800

D

8,000

$3,200

E

10,000

$900

Determine the coefficient of variation, rank the 5 alternatives from lowest risk to highest risk.