You need to hire some new employees to staff your start-up venture. You know that potential employees are distributed throughout the population as follows, but can't distinguish among them:
Employee Value Probability
$50,000 0.25
$60,000 0.25
$70,000 0.25
$80,000 0.25
What is the expected value of five employees you hire?
Froeb, McCann et al. managerial economics, 4th edition