Find the value of sample covariance in linear regression model.
In fitting simple linear regression model Yi ~ N (α + β xi, σ2) to the following data:
|
Yi
|
42.87
|
43.64
|
44.87
|
43.8
|
44.68
|
44.99
|
44.92
|
46.05
|
|
Xi
|
3.579
|
3.751
|
4.57
|
4.32
|
3.79
|
4.054
|
4.138
|
5.159
|
The value of Sxy is:
1. 185.82
2. 1486.57
3. 2.76
4. 371.29
5. 185.47