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 (A ∩ B), you can follow these steps:
Step 1: Identify the odd numbers in set A.
Odd numbers in A: {1, 3, 7, 9}
Step 2: Identify the numbers in A that are also in set B.
Numbers in A ∩ B: {3, 7, 9}
Step 3: Calculate the probability by dividing the number of favorable outcomes (numbers in A ∩ B) by the total number of possible outcomes (numbers in set A).
Number of favorable outcomes: 3 (numbers in A ∩ B)
Total number of possible outcomes: 6 (numbers in set A)
Probability = Number of favorable outcomes / Total number of possible outcomes
= 3 / 6
= 1/2
= 0.5
Therefore, the probability of choosing an odd number from set A that is also in set B is 0.5 or 50%.