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The following data show the demand for a product (in hundreds) and its price (in dollars) charged in 9 different cities.

Price (x) .... | 25 | 15 | 18 | 20 | 19 | 23 | 21 | 17 | 22
Demand (y) | 23 | 55 | 47 | 45 | 40 | 30 | 42 | 59 | 32

The equation of the regression line for this data would be



a. y = -3.53x + 111.96

b. y = -3.53 + 111.96 x

c. y = -3.53x - 111.96

d. y = 111.96 + 3.53 x

e. y = 111.96x + 3.53

or is it none of these

2007-04-28 11:15:25 · 2 answers · asked by Olivia 4 in Science & Mathematics Mathematics

2 answers

Do you have a graphing calculator? If so, you can plug in the points, then go to calculations to calculate the regression line.

2007-04-28 11:26:52 · answer #1 · answered by tien 3 · 0 1

The answer is a), but I did this using Excel.

2007-04-28 11:56:14 · answer #2 · answered by gp4rts 7 · 1 0

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