Example 16.15 Calculate the coefficient of correlation between price and sales from the following data: Price (Rs) 100 90 85 92 90 84 88 90 Sales (Units) 500 610 700 630 670 800 800 750 Interpret the value of r.

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A: Solution: From the given information, AX = θ. Here,

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A: Solution is in image uploaded below

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Q: Select the strongest correlation coefficient (r). +.75 -.80 None of the above +.50

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A: Here given   A is set for which |A| = 12  So here no of elements in set A = 12

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A: Given: 1st semester 2nd semester 90 89 88 90 93 94 96 95 86 90 85 86 92 85 84 82…

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A: Sampling is the method of selecting samples from the large population.

Q: Advertising Cost (X) Annual Sales (Y) 0.9 2 1.1 1.1 6. 1.4 8. 1.5 10 1.9 12

A: .

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Q: Example 21.8) A marketing manager has to decide be- tween advertising his product on a national…

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A: Given : n = 6 k =  5

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Q: 1 The sample mean is _______. a 12.32     b 13.25     c 14.25     d 15.32

A:

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A: Given information: Rolling eight fair six-sided dice. P1=P2=P3=P4=P5=P6=16

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A: Here given , past experience suggests  that on the average 2 potholes per kilometer after a certain…