A Calculate the Covariance and the Coefficient of Correlation for the Following

Essay

a. Calculate the covariance and the coefficient of correlation for the following sample. $$\begin{array} { | l | r | r | r | r | r | } \hline x & 9 & 6 & 7 & 5 & 8 \\\hline y & 19 & 14 & 16 & 12 & 15 \\\hline\end{array}$$ b. What do these statistics tell you about the relationship between X and Y?