# Scatter plot, correlation and regression

A study was done with a group of university students to determine if there was a correlation between the amounts of sleep they got and their academic performance. The following table lists some data from the study.

Student

A

B

C

D

E

F

G

H

I

J

K

L

Hours of Sleep

6.0

6.5

7.0

6.5

8.5

8.0

9.0

8.5

7.0

7.5

6.5

7.5

Average Mark

62

58

66

71

76

82

76

75

70

68

56

77

a.Make a scatter plot of the data.

b.Using a graphing calculator, determine the correlation coefficient.

c.What would you conclude about the relationship between the two variables

https://brainmass.com/math/interpolation-extrapolation-and-regression/scatter-plot-correlation-regression-342141

#### Solution Preview

Please see the attachment.

Stats of two variables

A study was done with a group of university students to determine if there was a correlation between the amounts of sleep they got and their ...

#### Solution Summary

The expert examines scatter plots, correlations and regression analysis.