Construct a scatter plot for the above data and distinguish the coefficient of correlation from coefficient of variation.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 24PFA
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  1.  (a) An educator wants to see the relationship between the student’s absences and GPA. Compute the relationship, by using Pearson product moment correlation coefficient. The data is given below.

 

Absences 

4

5

2

8

3

10

G.P.A 

2.5

                                                                                                                             2.3

3.1

2.1

3.3

2.2

Construct a scatter plot for the above data and distinguish the coefficient of correlation from coefficient of variation.                                                                                         

             

             (b) Find Coefficient of Variation for the following data.                                                           

Weight in Kg

0-10

10-20

20-30

30-40

40-50

50-60

60-70

Number

4

5

7

6

8

4

3

   

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