Understanding and Identifying the Intersection of Subsets

This video tutorial explains how to identify the intersection of two subsets using Venn diagrams and two-way frequency tables. It begins with an introduction to subsets and universal sets, followed by examples to clarify these concepts. The tutorial then delves into the intersection of sets, illustrating it with Venn diagrams and a sample problem involving jelly purchases. The problem is solved using both Venn diagrams and frequency tables, demonstrating how to organize and interpret data effectively.

What is a subset in the context of jelly beans?

• A group of all jelly beans

• A group of yellow jelly beans within all jelly beans

• A group of red jelly beans

• A group of jelly beans not in the larger set

Which numbers form the intersection of odd numbers and multiples of 3 from 1 to 10?

• 2 and 4

• 6 and 8

• 1 and 5

• 3 and 9

What symbol is used to represent the intersection of two sets?

• U

• ∩

• ∪

• ⊆

How many people bought both strawberry and grape jelly?

• 84

• 37

• 21

• 63

In the sample problem, how many people bought only strawberry jelly?

• 84

• 63

• 21

• 16

How many people did not buy either strawberry or grape jelly?

• 29

• 50

• 66

• 150

What is the total number of people surveyed in the sample problem?

• 100

• 121

• 150

• 200