The Data That Follow Are Taken from a Graph Published

Essay

The data that follow are taken from a graph published in the journal, Cancer Research. The cancer death rate is per 100,000 and the fat intake is in grams per capita per day. Plot the data, calculate r, and write an interpretation that includes advice about the effect of reducing fat intake. Calculate the regression coefficients and predict the death rate for a country whose fat intake is 160 (which is Denmark). Draw the regression line on your scatterplot, identifying with X's two points that you know lie on the regression line. Begin by identifying which variable is Y and which is X. $$\begin{array} { l c r } & \begin{array} { c } \text { Cancer } \\ \underline{\text { Death Rate }}\end{array} & \begin{array} { r } \text { Fat } \\ \underline{\text { Intake }}\end{array} \\ \text { Thailand } & 1 & 27 \\\text { Taiwan } & 4 & 46 \\\text { Chile } & 8 & 55 \\\text { Puerto Rico } & 6 & 77 \\\text { Italy } & 16 & 85 \\\text { Canada } & 24 & 140 \\\text { U.S. } & 22 & 148\end{array}$$