All four data sets share the same following statistics:
\[19882, 19728, 19335, 19287, \cdots, 617, 555, 529, 242\]
\[\text{percent (or relative frequency)}=\frac{\text{frequency}}{\text{total # of data points}}\]
Go to Google Colab and sign in. Open a new notebook.
import numpy
import pandas
url = "https://imse317.github.io/lecture-slides/ch01/data/bank.csv"
bank = pandas.read_csv(url)
bank.head()