I need help with # 7

Use the following problem to answer questions 6 and 7. Urn 1 contains 14 green and 15 yellow marbles. Urn 2 contains 11 green and 8 yellow marbles. An experiment consists of choosing one of two urns at random then drawing a marble from the chosen urn. Urn 1 is more likely to be chosen than Urn 2 with probability 0.57. 6. What is the probability that a green marble was chosen? a. 0.5155 b. 0.3768 C. 0.4859 d. 0.5241 e. 0.4828 7. What is the probability that Urn I was chosen, if it is known that a yellow marble was drawn? a. 0.6195 b. 0.7223 C. 0.5874 d. 0.4698 e. 0.0841 Use the following problem to answer questions 8 and 9. A television manufacturer has three locations where it is finally assembled. Plants A, B, and C supply 65%, 15%, and 20% respectively of the televisions used by the manufacture. Quality control has determined that