Answer:
$28,875
Step-by-step explanation:
The given table is:

The expected probability is derived using the formula: 
Therefore, for the given distribution,
Expected Probability

If each yearly lease is $12,000
The Expected Yearly Lease for the Whole Building=2.40625 X 12000
=$28,875
Answer: D.15/17 because it’s the correct formula
Answer: It's the top left because the line passes through 10 on the y axis.
Given that

, it has PDF

and thus CDF

The 25th percentile is the value

such that

. We have