Following are the data of a price and demand of an item recorded at different period...

Following are the data of a price and demand of an item recorded at different period of time for a garment manufacture Price(Rs.) 13 15 18 25 22 18 28 Demand 65 60 50 41 40 56 45 (a) Find the Karl Pearson’s Correlation coefficient. Also comment on its strength. (b) Estimate demand if price is Rs.68 (c) If Rs.2 is increased in price and demand is reduced by 3units, how the coefficient of correlation would be effected. (d) If regression coefficient of regression is y on x is 1.32 and x on y is 0.63. Find the coefficient of correlation between y and x.

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orchestra answered 1 year ago

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