A manufacturer is producing face masks and PPES for use by the DOH for its frontliners to be protected from COVID-19 in different hospitals nationwid e. Below are the costs of production and demands of the face masks and PPEs required by DOH depending on the type of patients. S3 Alternative Revenue Unit per Unit Cost S1- Person Under S2 Person Person Under Monitoring with Investigation COVID S4-Person with COVID 19 in ICU 19 in Ward Surgical 15000 Face Mask 15.00 8.00 25000 5000 15000 (SFM) N99 Face Mask 225.00 175.00 7000 8000 2500 5500 (N99FM) N95 Face Mask 150.00 75.00 6500 8500 5000 3000 (N95FM) Regular PPE 750.00 500.00 10000 7000 0 1500 (RPPE) Special PPE 1850.00 1500.00 2000 1500 4500 5000 (SPPE) Probability 0.35 0.25 0.25 0.15