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#1 2017-07-25 07:26:32

Alex23E
Member
Registered: 2017-07-25
Posts: 5

Please Help! Statistics - Find the linear correlation coefficient

x    y
10    9.13
8    8.14
13    8.74
9    8.77
11    9.27
14    8.11
6    6.13
4    3.11
12    9.13
7    7.26
5    4.74

b. Find the linear correlation coefficient, r, then determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables.
The linear correlation coefficient is r=

(Round to three decimal places as needed.)

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#2 2017-07-25 07:39:07

zetafunc
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Registered: 2014-05-21
Posts: 2,130
Website

Re: Please Help! Statistics - Find the linear correlation coefficient

Hi Alex23E, welcome to the forum.

Check out Math Is Fun's page on correlation. It includes a nice example of how to compute the coefficient for a pair of data sets.

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#3 2017-07-25 07:54:08

Alex23E
Member
Registered: 2017-07-25
Posts: 5

Re: Please Help! Statistics - Find the linear correlation coefficient

Is anyone able to help with the answer! Please let me know smile

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#4 2017-07-25 07:56:43

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,130
Website

Re: Please Help! Statistics - Find the linear correlation coefficient

If you visit the link I posted and scroll to the bottom, there is a worked example.

Do you know how to calculate the mean of each of these data sets?

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#5 2017-07-25 08:12:28

Alex23E
Member
Registered: 2017-07-25
Posts: 5

Re: Please Help! Statistics - Find the linear correlation coefficient

I believe so. The thing is that I just have to do this for like 10 more problems and don't have much time to do it sad I know with a graphing calculator it can be done very quickly but I don't have one

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#6 2017-07-25 20:09:55

bob bundy
Administrator
Registered: 2010-06-20
Posts: 8,168

Re: Please Help! Statistics - Find the linear correlation coefficient

hi Alex23E

Welcome to the forum.

If you 'google' it you'll find several sites that have calculators for this.  You just have to enter the data.

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#7 2017-07-27 07:19:46

Alex23E
Member
Registered: 2017-07-25
Posts: 5

Re: Please Help! Statistics - Find the linear correlation coefficient

bob bundy wrote:

hi Alex23E

Welcome to the forum.

If you 'google' it you'll find several sites that have calculators for this.  You just have to enter the data.

Bob

Thanks it worked!!

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