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.

Question

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

Answer 1

http://www.alcula.com/calculators/statistics/correlation-coefficient/

http://www.alcula.com/calculators/statistics/linear-regression/