A study was conducted to evaluate the relationship between the number of new cases of lung cancer and the number of cigarettes smoked per day (results reported per 100,000 people). Data are summarized in the table below.. find linear regression. please provide step by step calculation

Cigarettes per day

5

10

15

20

25

30

35

40

45

50

New cancer cases

100

200

170

300

240

360

520

490

500

580