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Scatter plot, correlation and regression

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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

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The expert examines scatter plots, correlations and regression analysis.

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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 ...

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