Iam studying for a calculus test and have the answers for the study guide but i'm having trouble with problems 2, 3, 4 (finding maximums and minimums for each) as well as #9 (computing the limit). the answers are written next to each question.

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a diamond or heart. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability of randomly selecting a diamond or heart or club. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability of randomly selecting queen or club. (type an integer or a decimal rounded to three decimal places as needed.)