What is the probability of choosing an odd # from A that is AnB?
A{1,2,3,4,7,9}
B{3,7,9,11,12,15}
To find the probability of choosing an odd number from set A that is also in set B, we need to determine the intersection of the two sets (AnB), which consists of the common elements in A and B. In this case, the common odd numbers in A and B are 3, 7, and 9.
The next step is to calculate the probability by dividing the number of favorable outcomes by the total number of possible outcomes. In this case, the favorable outcomes are the odd numbers in the intersection of A and B (3, 7, 9), and the total number of possible outcomes is the total number of elements in the set A (6 elements).
Therefore, the probability of choosing an odd number from set A that is also in set B is 3/6, which simplifies to 1/2 or 0.5.