question archive A particular sale involves four items randomly selected from a large lot that is known to contain 10 percent defectives
A particular sale involves four items randomly selected from a large lot that is known to contain 10 percent defectives
Subject:MathPrice: Bought3
A particular sale involves four items randomly selected from a large lot that is known to contain 10 percent defectives. Let Y denote the number of defectives among the four sold. The purchase of the items will return the defectives for repair, and the repair cost is given by C(Y) = 3Y2 + Y + 2. Find the expected repair cost.
