The following sample observations are randomly selected.
X 5 3 6 3 4 4 6 8
Y 13 15 7 12 13 11 9 5
(a) Which is independent variable?
(b) Which is dependent variable?
(c) Draw scatter diagram
(d) Calculate coefficient of correlation
(e) What is the strength of coefficient of correlation?
(f) What is the coefficient of determination
(g) Interpret the association between X and Y.
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