Question: Answer Questions47 through 52 using the following data regarding maternal smoking and infant birth weight.(X,X 2 , Y,Y 2 ,and XY have already been calculated

Answer Questions47 through 52 using the following data regarding maternal smoking and infant birth weight.(X,X², Y,Y²,and XY have already been calculated for you

and are shown below.)

Cigarettes Per Day (X)X²Infant Birth Weight (Y)Y²XY

247.556.2515.0

6367.251.8443.2

101006.947.6169.0

121446.238.4474.4

X=30X²=284Y=27.8Y²=194.14XY=201.6

What is the slope (b)?

-0.12

-2.30

4.44

19.67

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