Shack Homebuilders Limited is evaluating a new promotional campaign that could increase home sales. Possible outcomes and probabilities of the outcomes are shown next.
| Possible Outcomes |
Additional
Sales in Units |
Probabilities |
| Ineffective campaign |
|
60 |
|
|
.60 |
|
| Normal response |
|
100 |
|
|
.20 |
|
| Extremely effective |
|
120 |
|
|
.20 |
|
|
Compute the coefficient of variation. (Do not round intermediate calculations. Round your answer to 3 decimal places.)