Please help as soon as possible! These I don't know...

1.)The standard error of the estimate indicates:

1a)how far two regression lines are from each other.

1b)how far, on average, the regression line is from the mean.

1c)how much error there is in any single prediction we make from a given regression equation.

1d)the typical distance between the regression line and each of the observed data points.

2.)Based on research with her patients, Dr. Sabine knows that the correlation coefficient between scores on an anxiety scale and comfort at a social gathering is 0.49. According to guidelines established by Cohen, how could we characterize the strength of this relationship?

2a) Small

2b) Medium

2c) Large

2d) Very Large

3.)Data from the 1993 World Almanac and Book of Facts were used to predict the life expectancy for men in a country from the life expectancy of women in the country. The resulting regression equation was = 9.32 + 0.79(X). Using the regression equation, what would you predict to be the life expectancy of men in a country in which the life expectancy for women is 65 years?

3a)69.68 years

3b)55.68 years

3c) 74.32 years

3d)60.67 years

4.)The regression line is the line that minimizes:

4a) the error in predicting scores on the dependent variable

4b) the mean of the dependent variable.

4c)the error in predicting scores on the independent variable.

4d) the correlation coefficient.