Trevor is holding 5 red balloons and 4 blue balloons. he randomly selects a balloon to give his sister, and then he randomly selects a balloon to give his brother. are two events dependent or independent? explain. a) dependent. the two siblings will want the same color balloon. b) independent. girls always want red and boys always want blue. c) independent. there are a set number of red balloons and blue balloons. d) dependent. when the first balloon is taken, it affects the ratio of red to blue balloons.