- 77 Views
- Uploaded on

Download Presentation
## PowerPoint Slideshow about ' Section 1.6' - nehru-calhoun

**An Image/Link below is provided (as is) to download presentation**

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript

### Section 1.6

Survey Problems

Objectives

- Use Venn diagrams to visualize a survey’s results.
- Use survey results to complete Venn diagrams and answer questions about the survey.

Example 3:

- Determine which numbered regions make up the indicated set.
- B’ ∩ C ∩ A’

U

II

V

IV

VI

VIII

Example 4:

- If n(A) = 21, n(B) = 29, and n(U) = 48, find the number of elements in each regions I, III, and IV.

U

II 7

IV

Example 5:

- If n(A) = 23, n(B) = 27, and n(U) = 53, find the number of elements in each regions I, III, and IV.

U

II 8

IV

Example 6:

- The Venn diagram show the cardinality of each region.
- How many elements belong to set B?

U

1

7

2

3

8

Example 12:

- Considering sets A, B, and C, how many elements belong to exactly one of these sets?

U

1

7

2

3

8

Section 1.6 Assignment

- Classwork:
- TB pg. 55/1 – 18
- Must write problems and show ALL work to receive credit for the given assignment.

- TB pg. 55/1 – 18

Example 13:

- The accompanying Venn diagram shows the number of elements in region V. Use the given cardinalities to determine the number of elements in each of the other seven regions.
- n(U) = 30, n(A) = 11, n(B) = 8, n(C) = 14, n(A∩B) = 3, n(A∩C) = 5, n(B∩C) = 3

U

2

Example 15:

- n(U) = 38, n(A) = 26, n(B) = 21, n(C) = 18, n(A∩B) =17, n(A∩C) = 11, n(B∩C) = 8, n(A∩B∩C) = 7

U

Example 17:

- TB pg. 55/25

Example 19:

- A survey of 80 college students was taken to determine the musical styles they listened to. Forty-two students listened to rock, 34 listened to classical, and 27 to jazz. Twelve students listened to rock and jazz, 14 to rock and classical, and 10 to classical and jazz. Seven students listened to all three musical styles.
- Of those surveyed,
- How many listened to only rock music?
- How many listened to classical and jazz, but not rock?
- How many listened to classical or jazz, but not rock?
- How many listened to music in exactly one of the musical styles?
- How many listened to music in at least two of the musical styles?
- How many did not listen to any of the musical styles?

- Of those surveyed,

Example 19:

- Of those surveyed,
- How many listened to only rock music? 23
- How many listened to classical and jazz, but not rock? 3
- How many listened to classical or jazz, but not rock? 32
- How many listened to music in exactly one of the musical styles? 52
- How many listened to music in at least two of the musical styles?22
- How many did not listen to any of the musical styles? 6

Section 1.6 Assignment

- Classwork:
- TB pg. 55/24 – 34 EVEN
- Must write problems and show ALL work to receive credit for the given assignment.

- TB pg. 55/24 – 34 EVEN

Download Presentation

Connecting to Server..