There are also a lot of uncertain expenses, with ranges as follows:

Meals	$900 $1,350
Entertainment	$600-$1,200
Transportation	$200 - $600
Books	$400 - $800

The student foresees income to pay for next year. The only certain amounts are as follows:

State scholarship	$3,000
Parental contribution	$4,000

Some of the income is variable, with ranges as follows:

Waiting tables $3,000-$5,000

Library aide $2,000-$3,000

The student predicts that a loan will be needed. Develop a spreadsheet model and use it with 1,000 trials t6 forecast the probability distribution for the size of the loan. Treat any amounts that are variable as uniformly distributed over the range indicated.