Forty percent of a company's total output consists of baseballs, 30% consists of softballs, and 10% consists of tennis balls. Its only remaining product is handballs. If we place balls in a box in the same ratios as the company's output and select a ball at random from the box, what is the probability that
(a) The ball is a baseball?
(b) The ball is a tennis ball?
(c) The ball is not a softball?
(d) The ball is a handball?