Data Scientist Interview Questions, Pybrain

Q. What are the applications of data science ?
A. Optical character recognition, recommendation engines, filtering algorithms, personal assistants, advertising, surveillance, autonomous driving, facial recognition and more.

Q. What is R Data Science?
A. R is a programming language which is used for developing statistical software and data analysis. It is being increasingly deployed for machine learning applications as well.

Q. Define EDA?
A. EDA [exploratory data analysis] is an approach to analyzing data to summarize their main characterizes, often with visual methods.

Q. Explain the steps in exploratory data analysis in data science?
A. Make summary of observations
 Describe central tendencies or core
part of dataset
 Describe shape of data
 Identify potential associations
 Develop insight into errors, missing values and major deviations.