Suppose that the probability of an overnight delivery selection is 0.2, the probability of a second-day delivery selection is 0.4, and the probability of a standard-delivery selection is 0.2.

(i)Find the probability that a randomly selected online purchase selects delivery to the nearest store for customer pick-up.

(ii)Find the probability that the customer selects a form of expedited delivery.

(iii)Find the probability that either standard delivery or delivery to the nearest store is selected.