. Imagine that you have a group of 25 people. Nine of them have brown hair. Seven of them have black hair. Six of them have blond hair. Three of them have red hair. You select one of the people at random: a) What is the probability that you will select a person with brown or black hair? b) What is the probability that you will select a person with blond or red hair? c) What is the probability that you will NOT select a person with black hair?