The data table shows the annual global growth rates of population and GDP. GDP stands for gross domestic product. It’s a measure of the total amount of economic activity in a country or a region. It represents the total value of all goods and services produced in a country or region in one year. Calculate the Pearson correlation coefficient for GDP growth rate versus population growth rate. Use the variable x to represent the population growth rate. Use the variable y to represent GDP growth rate. To find the correlation coefficient, apply this formula: As before, the ∑ symbol stands for the sum over all data points. You will need a calculator to get the result. Show the steps in your calculation. Alternatively, you can enter the values and perform the calculations in a spreadsheet. Enter each data point in a different row and intermediate values such as x2, y2, and xy in different columns. If you use a spreadsheet, paste it in your answer.