Based on the Applications to the Analysis of Social Problems

Multiple Choice

Based on the Applications to the Analysis of Social Problems section of Chapter 14,a smoothing technique

A) changes the slope of the regression equation to better fit the datA.
B) removes much of the noise from the scatterplot.
C) reduces the intercept of the regression line.
D) increases the absolute value of the correlation coefficient.
E) will increase the probability that the r value will be significant.