Set S consists of integers {1,3,5,7}. If two numbers are chosen from set S at random, what is the probability that the product of 2 numbers is more than 15? Select:  A) 1/2  B) 1/3  C) 1/5  D) 1/6  E) 2/3
Number of ways you can choose 2 from 4 = 4C2 = 6   E = event of getting the 2 numbers product is more than 15 = (3,7),(5,7) = 2   probability = 2/6 = 1/3   Answer is 1/3
<result>B</result>
Set S consists of integers {1,3,5,7}. If two numbers are chosen from set S at random, what is the probability that the product of 2 numbers is more than 15?