In the churn dataframe, what are the total no. of missing values for the variable TotalCharges? For data science using Python in Anaconda - Jupyter

#import the library Pandas

import pandas as pd

#Put the churn.csv dataset on Root Directory

#Read the dataset 

churn = pd.read_csv('churn.csv')

#In the churn dataframe, what are the total no. of missing values for the variable TotalCharges?

churn.TotalCharges.isnull().sum() 

Output:-

15