Question #ba8c9

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Answer 1 · 2017-09-25T19:47:45

#4#

#y=2.2x+10# is the equation of the least squares regression line.

#residual = Y_ obs -Y_pred#, this is the formula we use to find the residual.

#y_obs# means the value of #y# that you found or observed from the scatter graph.

#Y_pred# means the value of #y# that you will find using the equation of the least squares regression line.

The point given is #(5,25)#

#x=5#

#y_obs = 25#

(Using equation)#Y _ pred = 2.2 ×5+10#
#=21#

Residual #= 25-21#
#= 4#