Calculate the correlation co-efficient by first multiplying each X and Y by 10 ab)subtracting 70 from each X and 60 from each Y.X8.29.67.0 9.410,9 7.1 9.0 6.6 8.4 10.512.4Y8.79.66.9 8.511.3 7.6 9.2 6.3 8.4

Correlation It tells how the variables are linearly related with each other. It represents the…

Answered: Calculate the correlation co-efficient…

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

Similar questions

A strong positive correlation means: the points in a scatter diagram lie on a downward sloping line O the points in a scatter diagram lie on an upward sloping line O ris close to -1 O ris close to 1
Match each scatterplot shown below with one of the four specified correlations. a. -0.80 b. -0.25 c. 0.42 d. 0.84 Lo 8 of o
2. Find rank correlation co-efficient for the following đata and give your comments. Marks in Accounts (x): 84 56 89 58 59 67 74 78 Marks in Maths (y): 38 69 56 58 63 78 87 77 CS Scanned with CamScanner
A researcher hypothesized that an increase in stress at work was caused by an increase in consumption of alcohol. Further research found that increased consumption of alcohol was caused by increased work stress. This is an example of O al a reverse cause-and-effect relationship a presumed cause-and-effect relationship an accidental cause-and-effect c) relationship d) a cause-and-effect relationship O b)
Given the following set of five ordered pairs, the correlation r equals ______. a.0.3 b.0.6 c.0.9
The correlation between midterm and final grades for 300 students is 0.620. If 5 points are added to each midterm grade, the new r will be: a. 0.124 b. 0.57 c. 0.62 d. 0.744
Suppose the correlation between variables x and y isr = – 1. Also suppose that the data contains the points (6, 14) and (2, 18). Finally, suppose that the x-values in the data set are: æ 2 3 5 6 8 Make a scatterplot of this data set. 20+ 19 18 17 16 15 14 13 12 10 8 6 6
Match each correlation value with its interpretation A. large (strong) negative relationship B. small (weak) positive relationship C. large (strong) positive relationship select 1.r -0.8 select 2.r 0.1 select 3. r = 0.7 7,821 MAR 20 F3 F2 D00 F4 F5 F6 F7 $ % & 4 6 LA 00 %#3
Plz calculate covariance and Coefficient of correlation.
the data set shows the high school student grade . it have their mid and final test results. we wish to determine if there is a relationship between the two. 1 77 65 2 83 90 3 79 67 4 88 85 5 76 62 6 66 80 7 76 74 8 95 93 9 65 59 10 91 86 11 80 52 12 87 82 13 86 54 14 62 71 15 92 86 16 76 88 17 68 82 18 92 95 19 80 77 20 59 72 21 68 84 22 71 75 23 62 73 24 67 55 25 76 94 26 72 79 27 99 89 28 57 52 29 81 78 30 72 83 31 76 69 32 94 98 33 71 94 34 71 81 35 71 83 36 95 96 37 73 60 38 88 85 39 94 97 40 84 88 41 59 71 42 67 92 43 97 85 44 84 87 45 87 99 46 92 98 47 77 91 48 84 93 49 92 79 50 75 81 51 95 99 52 80 73 53 62 79 54 70 76 55 87 91 56 88 95 what is the equiation for the linear regression model? Final grade= ___ + ___ * Mid term grade (round to three decimal places) If cammy scores 73 on the midterm, her predicted final exam grade would be _______
For each graph describe the correlation as none, weak, or strong and positive or negative .
Page 34 Compute the correlation coe cient, r, for the following table: X 10 y 5 12 15 16 1 4 6 18 1 9 7 8 1 25 12 14 17 3 6

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

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

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

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

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

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

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

Calculate the correlation co-efficient by first multiplying each A and ! by 10 b) subtracting 70 from each X and 60 from each Y. 8.2 9.6 7.0 9.4 10,9 7.1 9.0 6.6 8.4 10.5 Y 8.7 9.6 6.9 8.5 11.3 7.6 9.2 6.3 8.4 12.4