Is anyone able to explain this step by step for next questions also thank you.

Answer:
Step-by-step explanation:
residual=actual-expected value
A. residual plot 1
as actual value-expected value=0
so all points lie on x-axis.
B
x=1
actual=4,expected=4.2
residual,4-4.2=-0.2
x=2,
actual=5.5
expected=4.7
residual=5.5-4.7=0.8
x=3,actual=6.5,expected=5
residual=6.5-5=1.5
and so on
Residual plot 3 matches this
C you can find the values of actual and expected value and then find residual.
actual=dot(y value)
expected=point onthe line (y-value)
Residual plot 2 matches this.