Variable

Obs

Mean

Std. Dev.

Min

Max

y

530

0.418

0.218

0.109

1.266

x

530

9.799

2.271

3.569

13.767

x1

530

102.329

65.289

24.052

360.07

x2

530

62.339

16.424

19.753

86.925

x3

530

1.852

3.335

−10.016

8.824

x4

530

8.843

2.329

1.981

12.99