Find data and enter into calculator by going to stat then press 1. Put the X-axis data into L1 and the Y-axis data into L2.
Go to stat plot by pressing 2nd then Y= and turn on number 1.
Go to window and set up a good window that the data will fit in.
Estimate a line of best fit and out the equation into the Y=.
Make the line of best fit by going into stat then moving over to calc the choose number 4.
After having the line of best fit go to catalog by pressing 2nd then 0. Then scroll down to diagnostics and turn it on and then redo the process for the line of best fit.
The r value shows correlation. Correlation tells how close the points are to the line of best fit. The correlation is between -1 and 1. Negative numbers means that the slope is negative and if the numbers are positive then the slope is positive. The closer the r value is to 1 or -1 the closer the points are to the line. If r is 0 then there is no correlation.
HOMEWORK:
Pg 102, #1-10, 29, 31, 33 and finish the triangles sheet.
3 comments:
Your second picture is not showing up
estimate a line of best fit and PUT it into Y=
Yeah, I'm with Tyler on this one, your second picture isn't showing up, and I checked on my functional computer and it still isn't showing up. I don't know what you want to do about that, just thought I would make the problem evident, again.
Brad.
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