Math Is Fun Forum

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.)

zetafunc

Moderator

Registered: 2014-05-21

Posts: 2,432

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.

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

zetafunc

Moderator

Registered: 2014-05-21

Posts: 2,432

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?

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 I know with a graphing calculator it can be done very quickly but I don't have one

Bob

Administrator

Registered: 2010-06-20

Posts: 10,143

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
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

Alex23E

Member

Registered: 2017-07-25

Posts: 5

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

Thanks it worked!!