Question

The budgeting process for a midwestern college resulted in expense forecasts for the coming year (in...

The budgeting process for a midwestern college resulted in expense forecasts for the coming year (in $ millions) of $9, $10, $11, $12, and $13. Because the actual expenses are unknown, the following respective probabilities are assigned: 0.2, 0.3, 0.2, 0.05, and 0.25. (a) Show the probability distribution for the expense forecast. x f(x) 9 10 11 12 13 (b) What is the expected value (in $ millions) of the expense forecast for the coming year? $ million (c) What is the variance of the expense forecast for the coming year? (d) If income projections for the year are estimated at $12 million, comment on the financial position of the college. With this estimate, the college can expect a profit (in $ million) of $ million. From the assigned probability, there is chance that expenses will equal $13 million causing the college to run a

Homework Answers

Answer #1

a)

x P(x)
9 0.2
10 0.3
11 0.2
12 0.05
13 0.25

b)

x P(x) xP(x) x2P(x)
9 0.2 1.800 16.200
10 0.3 3.000 30.000
11 0.2 2.200 24.200
12 0.05 0.600 7.200
13 0.25 3.250 42.250
total 10.850 119.850
E(x) =μ= ΣxP(x) = 10.8500
E(x2) = Σx2P(x) = 119.8500
Var(x)=σ2 = E(x2)-(E(x))2= 2.1275

expected value =10.85

c)variance of the expense forecast =2.1275

d)

If income projections for the year are estimated at $12 million, comment on the financial position of the college. With this estimate, the college can expect a profit $1.15 million
From the assigned probability, there is chance that expenses will equal $13 million causing the college to run a loss

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