Choose the correct statements about the ROC curve. A. By plotting the true-positive rate against the false-positive rate for different threshold values, the ROC curve can be used to select the optimal model.
B. ROC stands for Receiver Operating Characteristic curve, which was originally developed to detect enemy aircrafts on radar.
C. The ROC curve is a useful diagnostic tool for determining the optimal classification model.
D. The ROC curve was originally developed to optimize healthcare and detect congestive heart failure readmission rate.

Sailcloth & more currently produces boat sails and is considering expanding its operations to include awnings for homes and travel trailers. the company owns land beside its current manufacturing facility that could be used for the expansion. the company bought this land 5 years ago at a cost of $319,000. at the time of purchase, the company paid $24,000 to level out the land so it would be suitable for future use. today, the land is valued at $295,000. the company has some unused equipment that it currently owns valued at $38,000. this equipment could be used for producing awnings if $12,000 is spent for equipment modifications. other equipment costing $490,000 will also be required. what is the amount of the initial cash flow for this expansion project?