1)Of the following, which represents the strongest possible value for a correlation (rxy) between two variables? -1.6 ,

[answerhappygod]

1)Of the following, which represents the strongest possible value for a correlation (rxy) between two variables? -1.6 , -.70, -.30, .00, .40
2) Which of the following probably exhibits a positive correlation?
automobile weight and gas mileage
test scores and level of anxiety during the test
current age and remaining years in life expectancy
years of education and income
3) the coefficient of determination (r2) tells us:
about both the strength and direction of the relationship between two variables.
whether two variables have a positive or negative relationship.
the proportion of variability in Y that cannot be determined from variability in X.
the proportion of variability in Y that can be determined from variability in X.