import pandas as pd                  # dataframe library
import matplotlib.pyplot as plt      # plot data
import numpy as np                   # N-dim object supportb

# do ploting inline
%matplotlib inline

data = [10,20,30,40,50,60]
df = pd.DataFrame(data, columns=['Numbers'])

df.head

<bound method NDFrame.head of    Numbers
0       10
1       20
2       30
3       40
4       50
5       60>

df['Numbers'].mean()

35.0

from scipy import stats
stats.trim_mean(df['Numbers'].tolist(), 0.3)

35.0

np.average(df['Numbers'].tolist(), weights=[0.4] * 6)

35.0