Supportive Supplements, a supplement business, is owned by Annalise. She is interested in assessing the demand for the supplements and believes the following probability distribution exists:

Demand for the product

Probability of this demand occurring

Rate of return if this demand occurs

Strong

$0,30$

$30\%$

Above average

$0,40$

$12\%$

Below average

$0,25$

$1\%$

Weak

$0,05$

$6\%$

What is the coefficient of variation on the demand for the product?