Homework Help is Here – Start Your Trial Now!
Math
Statistics
Eight students, randomly selected from a large class, were asked to keep a record of the hours they spent studying before their final exam. The following table gives the number of hours they studied before the finals and their scores on the final exam. Number of Final exam Student hours XY score (y) x2 y2 (x) 1 15 97 1455 225 9409 2 7 78 546 49 6084 12 87 1044 144 7569 4 92 736 64 8464 18 89 1602 324 7921 57 342 36 3249 7 74 666 81 5476 8. 11 70 770 121 4900 Total 86 644 7161 1044 53072 6 9, 6

Eight students, randomly selected from a large class, were asked to keep a record of the hours they spent studying before their final exam. The following table gives the number of hours they studied before the finals and their scores on the final exam. Number of Final exam Student hours XY score (y) x2 y2 (x) 1 15 97 1455 225 9409 2 7 78 546 49 6084 12 87 1044 144 7569 4 92 736 64 8464 18 89 1602 324 7921 57 342 36 3249 7 74 666 81 5476 8. 11 70 770 121 4900 Total 86 644 7161 1044 53072 6 9, 6

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question

What is the value of r?

a) 0.6802

b) 0.6208

c) 0.6280

d) 0.6820

Eight students, randomly selected from a large class, were asked to keep a record of the hours they spent studying before their final exam. The following table gives the number of hours they studied before the finals and their scores on the final exam. Number of Final exam Student hours XY score (y) x2 Y2 (x) 1 15 97 1455 225 9409 7 78 546 49 6084 3 12 87 1044 144 7569 4 92 736 64 8464 18 89 1602 324 7921 6. 57 342 36 3249 7 74 666 81 5476 8 11 70 770 121 4900 Total 86 644 7161 1044 53072
Transcribed Image Text:Eight students, randomly selected from a large class, were asked to keep a record of the hours they spent studying before their final exam. The following table gives the number of hours they studied before the finals and their scores on the final exam. Number of Final exam Student hours XY score (y) x2 Y2 (x) 1 15 97 1455 225 9409 7 78 546 49 6084 3 12 87 1044 144 7569 4 92 736 64 8464 18 89 1602 324 7921 6. 57 342 36 3249 7 74 666 81 5476 8 11 70 770 121 4900 Total 86 644 7161 1044 53072
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS