SOLUTION: Find the equation of the least-squares regression line ŷ and the linear correlation coefficient r for the given data. Round the constants, a, b, and r, to the nearest hundredth. {

Algebra ->  Finance -> SOLUTION: Find the equation of the least-squares regression line ŷ and the linear correlation coefficient r for the given data. Round the constants, a, b, and r, to the nearest hundredth. {      Log On


   

Question 1201907: Find the equation of the least-squares regression line ŷ and the linear correlation coefficient r for the given data. Round the constants, a, b, and r, to the nearest hundredth. {(1, 4), (5, 11), (7, 16), (9, 19), (11, 24)}
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!

I still think the TI-84 is the best way

Press STAT
Press ENTER
Put 1,5,7,9,11 in L1 and 4,11,16,19,24 in L2
Press STAT
Press the right arrow key to highlight CALC
Press 4
Press the down arrow key to hightlight Calculate
Press ENTER

You'll see values for a,b,r2, and r

Round them as you're told.

The regression line is ŷ = ___x + ___

Fill the blanks with the rounded values for a and b.

Edwin