In: Statistics and Probability
Absences | Grade (Marks) |
0 | 89.2 |
1 | 86.4 |
2 | 83.5 |
3 | 81.1 |
4 | 78.2 |
5 | 73.9 |
6 | 64.3 |
7 | 71.7 |
8 | 65.5 |
9 | 66.2 |
5 | 72.4 |
6 | 67.5 |
1 | 85 |
1 | 86.9 |
1 | 83.7 |
2 | 82.7 |
3 | 81 |
3 | 80.9 |
2 | 83 |
2 | 82.2 |
3 | 81 |
4 | 77.6 |
5 | 72.9 |
6 | 61.2 |
7 | 66.9 |
5 | 70.8 |
9 | 65.2 |
8 | 55.9 |
5 | 71.8 |
2 | 85.5 |
An Economics professor is trying to investigate the relationship between the number of times students were absent during the semester and their numerical grades. The data represents the grades of 30 randomly selected students from his economics class along with the number of times they were absent.
Using Excel make a scatterplot.
Does it appear to be a positive or negative relationship?
Explain your answer.
What are the independent and dependent variables?
Independent Variable:
Dependent Variable:
Answer:-
From the above information
We draw scatter plot by using EXCEL
Conclusion :- from the above scatter plot we observe that there is a negative relationship between absences and grade.
Here , dependent variable = Grade.
Independent variable = Absences .
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