Question: Question 1 Describe the 3 main relationships which indicates the linear degree of scatter. [3] Question2 The following data show, in convenient units, the yield

Question 1 Describe the 3 main relationships which indicates the linear

degree of scatter. [3] Question2 The following data show, in convenient units,

Question 1 Describe the 3 main relationships which indicates the linear degree of scatter. [3] Question2 The following data show, in convenient units, the yield (y) of a chemical reaction run at various different temperatures (x): Temperature (x) Yield (y) 110 2.1 120 4.3 130 3.1 140 150 2.9 160 5.5 170 3.3 Use (Ex = 980, Ey = 24.6, _ x2 = 140000, Ey2 = 93.62, Exy = 3502 ) (a) The equation of the regression line y on x is given by, [5] (b) What is the change in yield when temperature rate is 155 degrees Celsius (c) The correlation coefficient y on x is given by, (d) Comment on the correlation coefficient presented by the data (21

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