What would be the total cost of software F
over time?

Step-by-step explanation:
For Software F, there is a 90% chance that the total cost will be $10,000 and 10% chance that it will be $10,000 + $5,000 = $15,000.
Total cost of Software F over time
= 0.9 * $10,000 + 0.1 * $15,000
= $10,500.