a.
To make: a cumulative frequency table that represents the length of songs in seconds.
a.
Answer to Problem 21PPE
Time (in min) | Frequency | Cumulative frequency |
0-1:20 | 0 | 0 |
1:21-2:41 | 2 | 2 |
2:42-4:02 | 5 | 7 |
4:03-5:23 | 3 | 10 |
Explanation of Solution
Given:
The perpendicular bisector’s new CD is shown below:
Songs | Time (in min) |
Add It (intro) | 1:25 |
A Fraction of My Love | 3:30 |
Common Denominator | 4:14 |
Always, Sometimes, Never | 2:56 |
Factorial | 3:15 |
Transitive Property | 4:20 |
All You Need Is Math | 4:58 |
SAS | 3:51 |
Frequency | 3:32 |
Subtract It (outro) | 1:56 |
Concept used:
Cumulative frequency: Add the frequency of each interval to the frequencies of all the previous interval.
Calculation:
Now create the cumulative frequency table for the given data:
Time (in min) | Frequency | Cumulative frequency |
0-1:20 | 0 | 0 |
1:21-2:41 | 2 | 2 |
2:42-4:02 | 5 | 7 |
4:03-5:23 | 3 | 10 |
b.
To find: the percentage of songs are under 4%.
b.
Answer to Problem 21PPE
Explanation of Solution
Given:
The perpendicular bisector’s new CD is shown below:
Songs | Time (in min) |
Add It (intro) | 1:25 |
A Fraction of My Love | 3:30 |
Common Denominator | 4:14 |
Always, Sometimes, Never | 2:56 |
Factorial | 3:15 |
Transitive Property | 4:20 |
All You Need Is Math | 4:58 |
SAS | 3:51 |
Frequency | 3:32 |
Subtract It (outro) | 1:56 |
Calculation:
From the table, it is seen that there are 7 songs in which 10 songs are under 4%. Therefore,
Hence,
Chapter 12 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
Additional Math Textbook Solutions
Intermediate Algebra (7th Edition)
Elementary Algebra
College Algebra in Context with Applications for the Managerial, Life, and Social Sciences (5th Edition)
Introductory and Intermediate Algebra for College Students (5th Edition)
College Algebra (5th Edition)
College Algebra with Modeling & Visualization (6th Edition)
- Algebra and Trigonometry (6th Edition)AlgebraISBN:9780134463216Author:Robert F. BlitzerPublisher:PEARSONContemporary Abstract AlgebraAlgebraISBN:9781305657960Author:Joseph GallianPublisher:Cengage LearningLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning
- Algebra And Trigonometry (11th Edition)AlgebraISBN:9780135163078Author:Michael SullivanPublisher:PEARSONIntroduction to Linear Algebra, Fifth EditionAlgebraISBN:9780980232776Author:Gilbert StrangPublisher:Wellesley-Cambridge PressCollege Algebra (Collegiate Math)AlgebraISBN:9780077836344Author:Julie Miller, Donna GerkenPublisher:McGraw-Hill Education