One of the most important results from probability theory is known as ________ which is used to calculate the probability that something really is the case, given evidence in favor of it.

All of the following are mandatory benefits employers are required by law to provide except:

A. retirement insurance. B. unemployment insurance. C. Social Security. D. workers' compensation insurance.

A salesperson must be at least:

a. 16 years old b. 18 years old c. 20 years old d. 21 years old