Teaching S1/S2 statistics using graphing technology
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Correlation and regression<br />
It is advised that the calculator is used, if possible, to find the values<br />
of r, a and b.<br />
List 1: input x 1 2 3 4 5<br />
List 2: input y 21 28 34 45 51<br />
CALC<br />
F3 REG F1 X F2 a + bx<br />
This gives a,b,r (and r² )<br />
for regression equation y = a + bx<br />
y = 12.7 + 7.7x
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