Question

find the regression equation between sales and profit
sales. profit.
10. 22
20. 25
30. 26
25. 10
15. 12
18. 15.
22. 16
35. 29
42. 40

Answer 1

Answer:

Step-by-step explanation:

By Regression analysis one can develop a mathematical model that can be used to predict one variable by using another variable or variables.

Answer 2

"Given:

The sales and the corresponding profit data.        

Solution:

Concept: “Regression is used to find a variable using a developed relationship with other variable”

Rearrange the order;

Sales        Profit

10             22

15             12

18             15

20             25

22             16

25             10

30             26

35             29

42             40

Following are the relationship equations between sales (x) and profit (y).

i. 2x + 2 = 22

ii. 2x – 8 = 12

iii. 2x – 21 = 15

iv. 2x – 15 = 25

v. 2x – 28 = 16

vi. 2x – 40 = 10

vii. 2x – 34 = 26

viii. 2x – 41 = 29

ix. 2x – 44 = 40"