Python
import pandas as pd
s1= pd.Series([2,3,4,5,6,7,8,9])


print(s1)
0    2
1    3
2    4
3    5
4    6
5    7
6    8
7    9
dtype: int64
Python
import matplotlib.pyplot as plt
x=[1,2,3,4]
y=[5,10,15,20]
plt.bar(x,y,color="red",edgecolor="black")
plt.show()
Python
import matplotlib.pyplot as plt
score=[11,9,8,7,8,9,7,8,9,15,18,19,21,25,30,7,8,30,28,29]
plt.hist(score,bins=[10,17,25,30],histtype="barstacked",rwidth=0.6, color=["red"],edgecolor="green", orientation="horizontal")
plt.show()