# Scatter plot, correlation and regression

Not what you're looking for?

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

##### Purchase this Solution

##### Solution Summary

The expert examines scatter plots, correlations and regression analysis.

##### 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 ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.

##### Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

##### Probability Quiz

Some questions on probability

##### Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.

##### Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.