http://www.alcula.com/calculators/statistics/correlation-coefficient/
http://www.alcula.com/calculators/statistics/linear-regression/
The selling of prices Of six second hand bicycles in relation to their ages were noted for advertisements appearing in a local newspaper . The details are given in the table bellow.
Age x ( years) 4 10 2 1 3 4
Price, y. 9 1 14 18 12 7
( a) calculate the value of the product - moment correlation coefficient and state wag you infer from its value.
( b) fit a regression line to a model y equals a ➕ bx for the above data
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