import pandas as pd

tips = pd.read_csv("https://milliams.com/courses/data_analysis_python/tips.csv")

tips["bill_per_person"] = tips["total_bill"] / tips["size"]
tips

	total_bill	tip	day	time	size	bill_per_person
0	16.99	0.71	Sun	Dinner	2	8.495000
1	10.34	1.16	Sun	Dinner	3	3.446667
2	21.01	2.45	Sun	Dinner	3	7.003333
3	23.68	2.32	Sun	Dinner	2	11.840000
4	24.59	2.53	Sun	Dinner	4	6.147500
...	...	...	...	...	...	...
239	29.03	4.14	Sat	Dinner	3	9.676667
240	27.18	1.40	Sat	Dinner	2	13.590000
241	22.67	1.40	Sat	Dinner	2	11.335000
242	17.82	1.22	Sat	Dinner	2	8.910000
243	18.78	2.10	Thur	Dinner	2	9.390000

Introduction to Data Analysis in Python