Answer:
The expected profit is:
$5.
Step-by-step explanation:
a) Calculations:
Profit from customers paying $10 = $6 ($10 - $4)
Profit from customers paying $8 = $4 ($8 - $4)
Expected profit from customers paying $10, = $6 x 0.5 = $3
Expected profit from customers paying $8, = $4 x 0.5 = $2
Total expected profit = $5.
The expected profit is the profit from customers paying $10 weighted with probability plus the weighted profit from customers paying $8. Adding the expected profit from each class of customers gives the overall expected profit combined.