A standard deck of cards contains 52 cards. One card is selected from the deck. (a) Compute the probability of randomly selecting a heart or spade (b) Compute the probability of randomly selecting a heart or spade or club. (c) Compute the probability of randomly selecting a six or spade. (a) P(heart or spade) = (Type an integer or a decimal rounded to three decimal places as needed.) (b) P(heart or spade or club) = (Type an integer or a decimal rounded to three decimal places as needed.) (c) P(six or spade) = (Type an integer or a decimal rounded to three decimal places as needed.)