Four employees who work as drive-through attendants at a local fast-food restaurant are being evaluated. As part of a quality improvement initiative and employee evaluation, these workers were observed over three days. One of the statistics collected was the proportion of time the employee forgot to include a napkin in the bag. Also recorded was the proportion of all dinners packed by each employee. Related information is given in the table. What is the probability that Cheryl packed a given dinner and forgot to include a napkin?
A) 0.20
B) 0.10
C) 0.45
D) 0.02
E) 0.30

Question

Four employees who work as drive-through attendants at a local fast-food restaurant are being evaluated. As part of a quality improvement initiative and employee evaluation, these workers were observed over three days. One of the statistics collected was the proportion of time the employee forgot to include a napkin in the bag. Also recorded was the proportion of all dinners packed by each employee. Related information is given in the table.  What is the probability that Cheryl packed a given dinner and forgot to include a napkin?
A) 0.20 
B) 0.10 
C) 0.45 
D) 0.02 
E) 0.30

Quizplus · Accepted Answer

P(Cheryl ∩ Forgot napkin) = (.20)(.10) = 0.02

Four Employees Who Work as Drive-Through Attendants at a Local