1.) During a? 52-week period, a company paid overtime wages for 16 weeks and hired temporary help for 9 weeks. During 4 weeks, the company paid overtime and hired temporary help. Complete parts? (a) and? (b) below.
(a) Are the events? "selecting a week that contained overtime? wages" and? "selecting a week that contained temporary help? wages" mutually? exclusive?
No
Yes
(b) If an auditor randomly examined the payroll records for only one? week, what is the probability that the payroll for that week contained overtime wages or temporary help? wages?
?P(overtime wages or temporary help? wages) =