One child in the Mumbai study had height 59 cm and arm span 60 cm. This child’s residual is

a. −3.2 cm.

b. −2.2 cm.

c. −1.3 cm.

d. 3.2 cm.

e. 62.2 cm.

Measurements on young children in Mumbai, India, found this least squares line for predicting y = height (in cm) from x = arm span (in cm):

ŷ = 6.4 + 0.93x

Select the best answer.