What is Customer Churn?

Customer churn is defined as when customers or subscribers discontinue doing business with a firm or service.

Customers in the telecom industry can choose from a variety of service providers and actively switch from one to the next. The telecommunications business has an annual churn rate of $15-25$ percent in this highly competitive market.

Individualized customer retention is tough because most firms have a large number of customers and can't afford to devote much time to each of them. The costs would be too great, outweighing the additional revenue. However, if a corporation could forecast which customers are likely to leave ahead of time, it could focus customer retention efforts only on these "high$-$risk" clients. The ultimate goal is to expand its coverage area and retrieve more customer loyalty. The core to success in this market lies in the customer itself.

Customer churn is a critical metric because it is much less expensive to retain existing customers than it is to acquire new customers.

To detect early signs of potential churn, one must first develop a holistic view of the customers and their interactions across numerous channels. As a result, by addressing churn, these businesses may not only preserve their market position but also grow and thrive. The more customers they have in their network, the lower the cost of initiation and the larger the profit. As a result, the company's key focus for success is reducing client attrition and implementing an effective retention strategy.

Objectives:

Finding the $\%$ of Churn Customers and customers that keep in with the active services.

Analysing the data in terms of various features responsible for Customer Churn

Finding the most suited machine learning model for the correct classification of Churn and non$-$churn customers.

The data set includes information about:

Customers who left within the last month $$ the column is called Churn

Services that each customer has signed up for $$ phone, multiple lines, internet, online security, online backup, device protection, tech support, and streaming TV and movies

Customer account information $$ how long they$$ve been a customer, contract, payment method, paperless billing, monthly charges, and total charges

Demographic info about customers $$ gender, age range, and if they have partners and dependents

MultipleLines: $"0"=$No phone service; $"1"=$No; $"2"=$Yes

InternetService: $"0"=$No; $"1"=$DSL; $"2"=$Fiber optic

OnlineSecurity, OnlineBackup, DeviceProtection, TechSupport, StreamingTV, StreamingMovies: $"0"=$No; $"1"=$Yes; $"2"=$No internet service

Contract: $"0"=$Month$-$to$-$month; $"1"=$One year; $"2"=$Two year

PaymentMethod: $"0"=$Electronic check; $"1"=$Mailed check; $"2"=$Bank transfer $($automatic$)$; $"3"=$Credit card $($automatic$)$