Picnictech markets three versions of its picnic egg boxes: the golden deluxe, containing 3 gold eggs and one plain egg; the regular, containing 2 gold and 2 plain; and the econolunch, containing just one gold egg and 3 plain ones. the corner store has 3 golden deluxes on sale, 2 regulars, and 5 econolunches. this is all shown in the tree diagram below. you go to the corner store and buy a picnic egg box at random, and select an egg from it at random. use a probability tree diagram to calculate the probability that the egg is a gold one. a) 3/4b) 9/20c) 11/20d) 9/40e) 1/2