Ewing Oil is a privately held firm that specializes in the production and distribution of crude oil. Ewing Oil has cash holdings of $$500,000$ and an available line of credit. Inspection of the firm's historical. financial data indicates an average daily net cash flow of $$250,000$ with a standard deviation of $$800,000.$ Determine the available line of credit that would be necessary to achieve a $=2\mathrm{.}50$

$1,250,000$

$750,000$

$500,000$

$800,000$