1-132. Lyle asked for a challenge problem, and his teacher gave him this one: There is a chance of drawing a red marble out of a bag of marbles. If the probability of drawing a red or a blue marble is , what is the probability of drawing a blue marble? When Lyle’s teammates saw the challenge he was working on, they each had a different idea for how he should start. Mayra suggested that he start by rewriting and so that they have a common denominator. Kenessa disagreed. “You want to set up a subtraction problem,” she said. She wrote the expression to show the number Lyle needs to find. Darren had a different idea. “The probability that you would draw either red or blue is the same as the probability of drawing red added to the probability of drawing blue,” he said. He wrote this expression: Which way would you suggest Lyle start working to find P(blue)? Discuss your ideas with your study team. Write a clear explanation of which method you recommend and why. Include your ideas about whether the other strategies will solve the problem and why you did not choose them. What is the probability of drawing a blue marble? Explain your reasoning.