The ultimate guide to data science interviews. Developed by FAANG engineers, it covers Python, algorithms, ML concepts, and interview questions. Get interview-ready in just a few hours.

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This course will increase your skills to crack the data science or machine learning interview. You will cover all the most common data science and ML concepts coupled with relevant interview questions.
You will start by covering Python basics as well as the most widely used algorithms and data structures. From there, you will move on to more advanced topics like feature engineering, unsupervised learning, as well as neural networks and deep learning.
This course takes a non-traditional approach to interview prep, in that it focuses on data science fundamentals instead of open-ended questions.

In all, this course will get you ready for data science interviews. By the time you finish this course, you will have reviewed all the major concepts in data science and will have a good idea of what interview questions you can expect.

Data Science Interview Handbook

A Python variable is a reserved memory location that stores values. It is used to provide data for processing during run time. Every value in Python is associated with a type. Some examples of data types are numbers, strings, and objects.


<h2> Declaring a variable </h2>

A Python variable can be declared like this:


We do not need to put any data type before the variable, as   is required in some other programming languages (C, Java, etc.). In other words, Python is **not statically typed**. That means we do not need to declare the variables or their type before using them. Every variable in Python is an **object**.


Learn to declare, delete, and concatenate  variables in Python.


Are You Ready to Become a Data Scientist?

Python Basics

Python Libraries

More Data Science Tools

Data Structures and Algorithms - I

Data Structures and Algorithms - II

Statistics and Probability

Feature Engineering

Basics of Machine Learning

Regression

Classification

Unsupervised Learning

Advanced Topics in Machine Learning

Conclusion

Variables

Declaring a variable