The University of Miami bookstore stocks textbooks in preparation for sales each semester. It normally relies on departmental forecasts and preregistration records to determine how many copies of a text are needed. Preregistration shows 95 operations management students​ enrolled, but bookstore manager Vaidy Jayaraman has second​ thoughts, based on his intuition and some historical evidence. Vaidy believes that the distribution of sales may range from 75 to 95 ​units, according to the following probability​ model: Demand 75 80 85 90 95 Probability 0.05 0.25 0.20 0.15 0.35 This textbook costs the bookstore $ 82 and sells for $ 117 . Any unsold copies can be returned to the​ publisher, less a restocking fee and​ shipping, for a net refund of $ 30 . ​a) Based on the given​ information, Vaidy's conditional profits table for the bookstore​ is: Demand 75 80 85 90 95 Stock pequals 0.05 pequals 0.25 pequals 0.20 pequals 0.15 pequals 0.35 75 nothing nothing nothing nothing nothing