2. Rhian likes to wear colored shirts. She has 15 shirts in the closet. Five of these are blue, four are in different shades of red, and the rest are of different colors. What is the probability that she will wear a blue or a red shirt? 3. Mark has pairs of pants in three different colors, blue, black and brown. He has five colored shirts: a white, a red, a yellow, a blue, and a mixed-colored shirt. What is the probability that Mark wears a black pair of pants and a red on a given day? 4. Mario has 45 red chips, 12 blue chips, and 24 white chips. What is the probability that Mario randomly selects a red chip or a white chip