Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. Then calculate it again, letting Row 2 represent the x-values and Row 1 the y-values. What effect does switching the variables have on r?

Row 1 18 23 40 47 52 61 76

Row 2 111 184 136 176 128 120 203

Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values.

r= ____ (Round to three decimal places as needed.)