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Student exam marks (out of 100) and the number of classes they attended in the trimester were recorded for a subject.Excel was used to investigate

Studentexam marks(out of 100) and the number of classes theyattendedin the trimester were recorded for a subject.Excel was used to investigate the potential linear relationship between these two variables.A section of the summary output is provided below:

Regression statistics

Multiple R

0.67

R square

0.4489

Observations

41

Coefficients

Standard Error

Intercept

70.11

6.26

Attendance

460

1.34

How many students were sampled?

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