Step 1: Fur each [1,?) calculate :2 and my: 4 B 2 4 3 5 9 15 5 ? 25 35 ? 10 49 ?D 9 15 31 135 Ship 1: Sum x, 1r, x2 and xv {glues us Ex, Er. 21:2 and 23w}: 4 B 2 4 3 5 9 15 5 1 25 35 II" In 49 m 9 15 31 135 1:: 15 If: 41 :11: 1a: in: 253 Active: Alan H {number of data values} = 5 '53 \"11 59 Step 3: Calculate Slope m: m = N z(xy) - Ex Zy N E(x2) - (Ex)2 5 x 263 - 26 x 41 5 x 168 - 262 1315 -1066 = 840 - 676 249 164 = 1.5183... Step 4: Calculate Intercept b: b = zy - m Ex N = 41 - 1.5183 x 26 5 = 0.3049... Step 5: Assemble the equation of a line: y = mx + b Activat y = 1.518x + 0.305 Go to SeThe following table gives the heights and weights of 10 friends: Name Height (cm) Weight (kg) Albert 180 87 Beth 176 55 Cindy 144 52 David 195 94 Emily 159 87 Frank 185 79 Gary 166 59 Helen 173 64 Ida 149 45 Jeremy 168 77 Which one of the following best describes the correlation between their heights and weights? (Hint: draw a scatter plot) A High positive correlation B Low positive correlation C No correlation D Low negative correlationFor the following scatterplot: 30 25 20 15 10 5 10 15 20 25 90 how could you describe the correlation? A There is no correlation. B There is positive linear correlation. C There is negative linear correlation. D There is correlation which is shown by the points best fitting a curve.Calculate the Pearson correlation coefficient for the following data: T 12 NAGA JH A -0.120 B -0.2 C -0.220 D -0.320