7 A bag contains 6 red balls, 4 green balls and 2 blue balls. Zia takes a ball from the bag at random. The diagram shows a probability scale. A B C D E F G 0 1 Which arrow shows the probability that, (a) Zia takes a green ball ................................................. [1] (b) Zia takes a yellow ball ................................................. [1] (c) Zia does not take a blue ball. ................................................. [1] M SIHT NI ETIRW TON OD NIGRAM SIHT NI ETIRW TON OD NIGRAM SIHT