How do I find Sxx, Syy, and Sxy on my TI84 graphing calculator?

[smaan]

Hello,

I'm not sure if this is the correct section to post this in, but I need some help with my graphing calculator. I also posted this in the Statistics section.

I am given a set of X and Y data (2 sets of numeric data) and I need to find out how to find the Sxx, Syy, and Sxy in my TI84 graphing calculator. My professor went over it way to quickly in class and I am struggling. Please help!

smaan

 

[jedishrfu]

Here's a site with many TI84 tutorials:

http://calculator.maconstate.edu/calc_topics.html

a couple are on statistics problems.

and here's another more related to statistics:

http://www.radford.edu/~scorwin/courses/200/TI84.html

 

[smaan]

Here's a site with many TI84 tutorials:

http://calculator.maconstate.edu/calc_topics.html

a couple are on statistics problems.

and here's another more related to statistics:

http://www.radford.edu/~scorwin/courses/200/TI84.html[/QUOTE

I appreciate the reply, but both of those links do not help me with my question of obtaining Sxx, Syy, and Sxy.

 

[jedishrfu]

(Can you edit post#3 and add in the closing ] for the quote tag? It will make the quote display correctly.)

This is the best that I can find and its very sparse but may make sense to you:

http://answers.yahoo.com/question/index?qid=20130711085432AAblOxl

On page five of this pdf, it shows how to calculate these values but doesn't show the calculator steps:

http://depts.washington.edu/chemcrs/bulkdisk/chem145HA_aut05/lab_handout_Special_Appendix_A.pdf

and

http://www2.stetson.edu/~mhale/teach/ti84.htm#statistics

Looking at these, I think the problem may be that the s notation is not universally used making it difficult to search on.

Perhaps you can ask a fellow student or better the professor him/her self? They may be using a built-in function or some addon function that you need to include on your calculator and that's why you can't do it.