PR2........

Question 1

1. The closeness of the fit of
   the points of a scatterplot
2. The slope of the scatterplot
   (positive or negative)

Answer 1

Pearson Correlation

Question 1

are measured if we want to measure the degree or strength of the relationship between two variables.

Answer 1

Correlation Coefficients

Question 2

• Used if the variables are nonparametric
• Obtained when calculating the Pearson correlation coefficient using the ranks of the score values of the data set

Answer 2

Spearman’s Rho