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?

A. 54.36 inches

B. 65.84 inches

C. 66.55 inches

D. 69.36 inches

Question

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Mathematics

6 April, 09:15

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?

A. 54.36 inches

B. 65.84 inches

C. 66.55 inches

D. 69.36 inches

+2

Answers (2)

Know the Answer?

Karsyn Watson · Answer 1

B. 65.84

Step-by-step explanation:

You are given the armspan and a relation between that and height. Put the given value in the equation and solve for the unknown.

... 67.5 = 1.123x - 6.443

... 73.943 = 1.123x

... 73.943/1.123 = x = 65.84

Riley's height is predicted to be 65.84 inches.

Averie · Answer 2

B. 65.84

Step-by-step explanation:

i took on edg test. you are welcome

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?A. 54.36 inchesB. 65.84 inchesC. 66.55 inchesD. 69.36 inches

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?

A. 54.36 inches

B. 65.84 inches

C. 66.55 inches

D. 69.36 inches