Times they went to | Approximate spending Person the supermarket in the last month X2 Y2 X por y X Y 2 $259 4 $67,081 $518 $115 $13,225 $230 3 $160 $25,600 $320 3 $340 $115,600 $1,020 $300 $90,000 $300 $396 $156,816 $792 $410 $168,100 $820 $203 $41,209 $203 $276 A $76,176 $5,164 10 $123 $15,129 $123 Ex=17 Ey=$2,582 X=[x=17/10=1.7 =Zy=$2,582/10= Ex2=33 Zy2=$768,936 Exy =$9,490 258.2 1. Determine the slope (b) of the line using the following equation: be Exy - nxy Ex? - nx2 2. Substitute the slope into the formula to find the y-intercept. azy - bx 3.Present the formula of the regression line substituting the found values of a and b. y=a +bx 4.Determine the Pearson correlation coefficient nExy - ExZy r= [nEx - (Ex)][ncy - (>y)?] 5. Determine the coefficient of determination. 6. Present the graph of the regression line