The following data represent the scores (in words per minute) of 25 computer encoders on a speed test. Complete the table and answer the questions below. Scores f Xm fXm
The following data represent the scores (in words per minute) of 25 computer encoders on a speed test. Complete the table and answer the questions below. Scores f Xm fXm
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter6: Ratio, Proportion, And Probability
Section6.2: Writing And Solving Problems
Problem 9C
Related questions
Question
Measure of Variability
![The following data represent the scores (in words per
minute) of 25 computer encoders on a speed test.
Complete the table and answer the questions below.
Scores
f
Xm
fXm
<cf
54 - 58
59 - 63
64 - 68
8
69 - 73
1
74 - 78
3
79 - 83
84 - 88
From the frequency table above, answer the following:
1.
Class size
2.
Number of computer encoders with scores greater
than 63
3.
Percentage of computer encoders with scores less
than 69
4.
The 50th percentile class
5.
QI
6.
Q3
7.
D2
8.
D4
9.
P60
10. P90](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F57450ae3-27ec-49fb-a71a-ea2b2f3654cc%2Fb051fee8-8b40-4e4b-9b6e-751541a93fb9%2Fn2nbexd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The following data represent the scores (in words per
minute) of 25 computer encoders on a speed test.
Complete the table and answer the questions below.
Scores
f
Xm
fXm
<cf
54 - 58
59 - 63
64 - 68
8
69 - 73
1
74 - 78
3
79 - 83
84 - 88
From the frequency table above, answer the following:
1.
Class size
2.
Number of computer encoders with scores greater
than 63
3.
Percentage of computer encoders with scores less
than 69
4.
The 50th percentile class
5.
QI
6.
Q3
7.
D2
8.
D4
9.
P60
10. P90
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Recommended textbooks for you
![Holt Mcdougal Larson Pre-algebra: Student Edition…](https://www.bartleby.com/isbn_cover_images/9780547587776/9780547587776_smallCoverImage.jpg)
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
![Glencoe Algebra 1, Student Edition, 9780079039897…](https://www.bartleby.com/isbn_cover_images/9780079039897/9780079039897_smallCoverImage.jpg)
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
![Intermediate Algebra](https://www.bartleby.com/isbn_cover_images/9781285195728/9781285195728_smallCoverImage.gif)
Intermediate Algebra
Algebra
ISBN:
9781285195728
Author:
Jerome E. Kaufmann, Karen L. Schwitters
Publisher:
Cengage Learning
![Holt Mcdougal Larson Pre-algebra: Student Edition…](https://www.bartleby.com/isbn_cover_images/9780547587776/9780547587776_smallCoverImage.jpg)
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
![Glencoe Algebra 1, Student Edition, 9780079039897…](https://www.bartleby.com/isbn_cover_images/9780079039897/9780079039897_smallCoverImage.jpg)
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
![Intermediate Algebra](https://www.bartleby.com/isbn_cover_images/9781285195728/9781285195728_smallCoverImage.gif)
Intermediate Algebra
Algebra
ISBN:
9781285195728
Author:
Jerome E. Kaufmann, Karen L. Schwitters
Publisher:
Cengage Learning
![Algebra for College Students](https://www.bartleby.com/isbn_cover_images/9781285195780/9781285195780_smallCoverImage.gif)
Algebra for College Students
Algebra
ISBN:
9781285195780
Author:
Jerome E. Kaufmann, Karen L. Schwitters
Publisher:
Cengage Learning
![Algebra: Structure And Method, Book 1](https://www.bartleby.com/isbn_cover_images/9780395977224/9780395977224_smallCoverImage.gif)
Algebra: Structure And Method, Book 1
Algebra
ISBN:
9780395977224
Author:
Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:
McDougal Littell