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An estate agent suspects that a linear relationship exists between the number of...
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An estate agent suspects that a linear relationship exists between the number of houses sold (y) and the monthly loan payments (x). He analyses the following data over the past five months:
Monthly loan payments in R1 000's (x)
|
Number of houses sold (y)
|
3,7
|
16
|
5,6
|
25
|
7,5
|
80
|
18,9
|
45
|
28,4
|
12
|
The slope of the regression line to two decimal places is