Question

For children between the ages of 18 months and 29 months, there is an approximately linear relationship between height and age. the relationship can be represented by y hat = 64.93 + 0.63x, where y represents height (in centimeters) and x represents age (in months). joseph is 22.5 months old. what is his predicted height?

Answer 1

Given that the linear relationship between height and age is given by:
y=64.93+0.63x
To get Joseph's height given that he was 22.5 months old we proceed a follows:
x=22.5
plugging our value in the formula we obtain:
y=64.93+0.63(22.5)
simplifying:
y=64.93+14.175
y=79.105 cm