Answer:
A computer can be classified as either cutting dash edge or ancient. Suppose that 86% of computers are classified as ancient. (a) Two computers are chosen at random. What is the probability that both computers are ancient? (b) Seven computers are chosen at random. What is the probability that all seven computers are ancient? (c) What is the probability that at least one of seven randomly selected computers is cutting dash edge? Would it be unusual that at least one of seven randomly selected computers is cutting dash edge?
Explanation: