25 Mahir picks one number at random from the numbers 5, 10 and 15. He then picks one number at random from the numbers 4, 5 and 6. He adds the two numbers. The sample space diagram shows some of the possible outcomes. First number + 5 10 15 4 14 19 Second 5 15 20 number 6 16 21 (a) Complete the sample space diagram. [1] (b) Given that the total of the two numbers is odd, find the probability that one of the numbers added is 15. ................................................. [2] M SIHT NI ETIRW TON OD NIGRAM SIHT NI ETIRW TON OD NIGRAM SIHT NI E