Answer question 19

Answer question 19 QIS. calculate product moment correlation between age of cars and annual maintenance cost Age of cars (years) 2 4 8 10 12 Annual maintenance 1600 1500 1800 1900 1700 2100 2000 cost (in e) [r = +0.8361 0.19. Calculate coefficient of correlation by Pearson's method between the density of population and death rate: Cities Density Death rate A 200 10 B 16 c 14 D 20 E 17 13 = +0.9891 Q.20. The total of the multiplication deviation of X and Y 3044 of observations = 10

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