Question

PLEASE HELP
Use the Desmos graphing calculator to generate the least-squares regression line and statistics for the data in the table. What is the residual value for x = 18?

x y
2 3
4 9
11 12
15 17
18 16
25 22

0.4216


negative 0.4216


negative 1.2389


2.5784

Answer 1

Answer:

m=0.7404, b=3.9117m=0.7404,b=3.9117

y=0.7404x+3.9117y=0.7404x+3.9117

x=18x=18

y=0.7404(18)+3.9117=17.2389y=0.7404(18)+3.9117=17.2389

Residual

16-17.2389= -1.238916−17.2389=−1.2389

-

Answer 2

The residual value for x = 18 is -1.2389