AP BIOLOGY

HEREDITY

BASICS OF PROBABILITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A = {1, 3, 5, 7, 9}B = {2, 3, 5, 7}What is A ∩ B?
A
{3, 5, 7}
B
{2, 3, 5, 7}
C
{2, 3, 5, 7, 9}
D
{1, 2, 3, 5, 7, 9}
Explanation: 

Detailed explanation-1: -In the above figure, 2 sets A and B are given and the shaded region is the area common in both the sets and it is also called as A∩B. As you can see from both the sets that 3, 5, 7 are the common elements among both the sets. So, A∩B is equal to 3, 5 and 7. Hence, A∩B = 3, 5, 7.

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