Question

An engineering construction firm is currently working on power plants at three different sites. Let A, denote the event that the plant at site i is completed by the contract date. Use the operations of union, intersec- tion, and complementation to describe each of the following events in terms of A1, A2, and A3, draw a Venn diagram, and shade the region corresponding to each one. a. At least one plant is completed by the contract 8. , date. b. All plants are completed by the contract date. c. Only the plant at site 1 is completed by the contract date d. Exactly one plant is completed by the contract date. e. Either the plant at site 1 or both of the other two plants are completed by the contract date

Answer 1

Ans A2 A2 3 3 АЗ