import pandas as pd
import numpy as np

#Create a DataFrame
d = {
    'Name':['Alisa','Bobby','Alisa','Cathrine','Alisa','Cathrine',
            'Alisa','Alex','Alex','Alisa','Alex','Cathrine'],
    'Age':[26,24,23,22,23,24,26,24,22,23,24,24],

       'Score':[85,63,55,74,31,77,85,63,42,62,89,77]}

df = pd.DataFrame(d,columns=['Name','Age','Score'])
df
Name	Age	Score
0	Alisa	26	85
1	Bobby	24	63
2	Alisa	23	55
3	Cathrine	22	74
4	Alisa	23	31
5	Cathrine	24	77
6	Alisa	26	85
7	Alex	24	63
8	Alex	22	42
9	Alisa	23	62
10	Alex	24	89
11	Cathrine	24	77