Bryce wrote the linear regression equation y= 1. 123x-6.443 to predict the armspan, y, of a person who is x inches tall. riley has an armspan of 67.5 inches. which is the best prediction of riley’s height?

I am writing THe given equation is y = 1.123x -6.443 where y represents the armspan and x represents the height . Now we need to find the height , when armspan = 67.5 inches. SO we need to plug 67.5 for y and solve for x that is

67.5 = 1.123x -6.443

adding 6.443 to both sides

67.5 +6.443 =1.123x

73.943 = 1.123x

Dividing both sides by 1.123

x = 65.84 inches .

So for the given armspan of 67.5 inches, height is 65.84 inches .

B.

Step-by-step explanation:

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