Python Data Science Interview Questions and Answers, Pybrain

Basic python data science interview Questions

Q. What is the difference between series and list?


A. list is size and data mutable
series is data mutable but not size mutable.

Q. Which function is used to get descriptive statistics of a data frame?


A. describe().
data science
python data science interview questions and answers python is a high-level programming language using Data Science Now a days

Data Science

Data Science interview questions and answers for python top python interview Questions and Answers for data science

top data science python interview questions and answers

Q. What parameter is used to update the data without explicitly assigning data to a variable ?
A. Inplace is used to assign result of function to itself. If inplace = True , there is no need to explicitly assign to a variable.

Q. What is the use of With() and By() function in R on Data Science?
A. with() function applies an expression to a dataset.
#with(data,expression)
By() function applies a function t each level of a factors. 
#by(data,factorlist,function)

awesome python data science interview questions and answerstop data science interview Questions and Answers

beginners python data science interview questions and answers

Q. What is R square value?
A. R squared values tells us how close the regression line is fit to the actual values.

Q. What are some common ways of imputation in data science?
A. Mean imputation, median imputation, KNN imputation, Stochastic regression, substitution.

Harisystems is optimized for learning, testing and training. courses are designed to be simplified to improve reading and basic understanding for beginners to expert level. Tutorials and examples are constantly reviewed to avoid errors, however we cannot warrant full correctness of all content. if any found need to correct write us at info@harisystems.com. we Harisystems is not responsible for any with this tutorials, While using this site, you agree to have read and accepted our terms of use, cookie and privacy policy. Copyright 2007-2020 by Harisystems. All Rights Reserved.
Copyright © Harisystems 2020