Question
#50. The following data has to do with maternal smoking and infant birth weight.(X,X 2 , Y,Y 2 ,and XY have already been calculated for
#50.
The following data has to do with 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 y-intercept (a)for this data?
6.05
6.67
7.85
8.33
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College Algebra Graphs and Models
Authors: Marvin L. Bittinger, Judith A. Beecher, David J. Ellenbogen, Judith A. Penna
5th edition
321845404, 978-0321791009, 321791002, 978-0321783950, 321783956, 978-0321845405
