If we want to specify the percentage of the overall variability in life expectancy attributable to variability in smoking behavior, the statistic we want to look at is
A) r
B) r2
C) b
D) 
Correct Answer:
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Q19: When I want to make a prediction
Q20: In the equation for a straight line
Q21: The notation SS stands for
A) simply sensational.
B)
Q22: The standard error of estimate is given
Q23: If you drop a pencil randomly on
Q25: If the correlation between X and Y
Q26: A significant slope means that
A) the slope
Q27: When we use a regression equation to
Q28: The notation Y - Ŷ is referred
Q29: If the correlation between a body image
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