Answer:
0.1788
Step-by-step explanation:
The regression equation relates the length of newborn to their weight, in kg.
The equation is
[tex]w=-5.31+0.1694l[/tex]
Where
w is weight in kg
l is length in cm
The residual is the difference in observed value and predicted value
The observed value is 3kg . Now let's find the predicted value by plugging in 48 into the equation (in l):
[tex]w=-5.31+0.1694l\\w=-5.31+0.1694(48)\\w=2.8212[/tex]
Residual = 3 - 2.8212 = 0.1788
