This is a series of articles with basic concepts of statistics. Use this to brush up your skills or to understand few standard things which are widely used by data scientists and analysts while making decision. You can find the Part-1 of this series at https://medium.com/@aditi-mittal/statistics-cheat-sheet-for-data-scientists-part-1-e1be6a649f45 and Part-2 at https://medium.com/@aditi-mittal/statistics-cheat-sheet-for-data-scientists-part-2-14dc4e0d6f82.

You can find the Part-1 of this series at https://aditi-mittal.medium.com/statistics-cheat-sheet-for-data-scientists-part-1-e1be6a649f45 where I discussed about random variable, mean, median, mode, variance and standard deviation along with the measures of relationship like correlation and covariance. In this part, I will be discussing about the type of distributions, central limit theorem and few…

Data science is an interdisciplinary field of study which requires knowledge of various concepts such as machine learning and statistics. If you are starting with your data science journey then deep understanding in statistics will help you to take leverage in the journey. Statistics provides various tools and methods to…

While working with data scientists, I have realized that expert data scientists spend almost 80% of their time doing feature engineering because it’s a time-consuming and difficult process, yet important step for building accurate models. …

The major concern while training your neural network or any machine learning model is to avoid overfitting. The model will not be accurate enough if it is overfitting because it is trying too hard to capture the noise present in the training dataset. The noise are the data points that…

We have all seen a bizarre time, thanks to COVID-19, over the last one and a half years. With the second wave of the virus hitting us like a storm, India had seen one of the worst phases of all time. …

SQL stands for Structured Query Language and is used to access and manipulate the database. RDBMS stands for Relational Database Management System. It is the basis for SQL, and for database systems such as MS SQL Server, Oracle, MySQL, and Microsoft Access. In RDBMS, the data is stored in database…

MongoDB is a rich open-source document-oriented and one of the widely recognised NoSQL database. It is written in C++ programming language. Today, I wanted to share some of the basic stuff about MongoDB concepts and commands Important Terms Database Database is a physical container for collections. Each database gets its own set of…

Introduction Learning can be defined as acquiring knowledge or skills through experience, study, or by being taught. So, Machine Learning can be defined as a phenomenon where a machine can be taught or it learns on its own without being explicitly programmed. Definition Wikipedia has defined deep learning as: Deep learning is…