Answer:
The expected hourly benefit is $0.2.
Explanation:
The grocery store pays $10 per hour and the hardware store pays $12 per hour.
Lee is working at the grocery store so he must be earning $10 per hour.
The job interview takes two hours. If Lee interviews at the hardware store, there is a 10 percent probability of being hired.
This 10% probability means that there is a 10% chance of getting a raise of $2 for Lee.
And there is a 90% probability of no gain or wages remaining the same.
Expected hourly benefit
= [tex](0.1\ \times\ 2)\ +\ (0.9\ \times\ 0)[/tex]
= 0.2 + 0
= $0.2