Question

5) From the following data obtain the two regression lines: X 1 5 3 2 1 1 7 3 Y 6 1 0 0 1 2 15 i) Predict 'y' when x = 10 ii) Predict 'x' when y = 2.5 00356 (1) 0.10, (ii) 2.86]​

Answer 1

Answer:

xyxyx2y2261243645201625642436168324649102201004∑x=30      ∑y=20      ∑xy=100      ∑x2=220       ∑y2=90

xˉ=530=6,yˉ=520=4

xˉ=6,yˉ=4

bxy=n∑x2−(∑x)2n∑xy−∑x∑y=5(220)−9005(100