A regression line was calculated as y' = 42.5 + 3.1 x. What is the predicted value of y' when x = 5.5 ?

Question

a. 50.25

b. 53.35

c. 56.45

d. 59.55

e. 62.65

or is it none of these?

Answer 1

y' = 42.5 + 3.1x
y' = 42.5 + 3.1(5.5)
y' = 42.5 + 17.05
y' = 59.55
Answer d.

Answer 2

y = 42.5 + 3.1(5.5)

y = 42.5 + 17.05

y = 59.55

So the answer is D deary

Answer 3

d.