Data Interview Qs - Removing a trend from time series data

What is a time series and what is a trend in a time series dataset? If there’s a trend in a series, how can we remove it and why would we want to remove it? Given this dataset, remove the trend from the series.

To help get you started, below is code (Python) to import the referenced dataset:

        
# Import libraries
        
%matplotlib inline
        
import pandas as pd
        
import matplotlib.pyplot as plt
        
import numpy as np
        
# Import data
        
df = pd.read_csv('https://raw.githubusercontent.com/erood/interviewqs.com_code_snippets/master/Datasets/timeseries_v1.csv')
    

Our solution will be written using Python for premium users.