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Casio FX-570ES One Page Exercise:
LINEAR REGRESSION
>>> Determine the linear correlation coefficient for the paired sample data below:
x 65 75 57 42 86 73 80
y 72 59 68 54 92 68 72
What To Do The Screen Display
Turn on the calculator and clear the set up
1
, then set calculator to “STAT” mode.
W q 9 1 p C w 3
1
It is generally a good practice to clear the set up as you begin statistical calculation. See List of Exercises page for explanation.
Select to do calculation for “A+BX” and enter the x data at the X-column.
2 6 5 p 7 5 p 5 7 p
4 2 p 8 6 p
7 3 p 8 0 p
Next we go to Y-column and enter the y data at this column.
R $
7 2 p 5 9 p 6 8 p 5
4 p 9 2 p 6 8 p 7 2
p
Next we clear the screen and find the correlation coefficient.
C
q 1
7 3 p