You manage a call center. You are reviewing wages for 25 phone operators and 5 supervisors. Phone operators earn $22.85 per hour, and supervisors earn $27.25 per hour.
What, approximately, is the mean hourly wage for the 30 employees?
$23.02
$23.58
$25.05
$26.52
$27.21

How do you find p(a and b) if a and b are independent events for two or more actions, such as tossing a coin twice and finding p(heads and heads)? 2. how do you find p(a or b) if a and b are independent events for one action, such as spinning a four-color spinner once and finding p(red or blue)?