Question 1162127
<pre>
You can do all this with a TI-83 or 84.

Press the keys STAT 1 to put the x-values in L1,
and the corresponding y-values in L2

Press STAT then press the right arrow key to highlight CALC.

To get a scatter plot press 2ND Y=  highlight ON choose the icon that
looks like a scatter plot

To get the straight line press STAT then press the right arrow key to highlight CALC.  Choose LinReg(ax+b)

Substitute the values for a and b in y=ax+b for the

The value after " r= " is the correlation coefficient.

Substitute 0.45 in the equation.

Edwin</pre>