Top 10 Data Science interview Questions 


Preparing for a data scientist interview can be a daunting task, especially when faced with a myriad of potential questions. Whether you're a seasoned professional or a recent graduate, understanding the key areas of focus is crucial.

geekyrahul

GeekyRahul

Data Scientist, AWS Certified Machine Learning Specialist

In this guide, we'll explore the top 10 data science interview questions that you need to know. To answer technical questions in interviews, you should also try to prepare for Python interview questions for data science. These questions not only test your technical skills but also your conceptual understanding of data science concepts. By mastering these, you'll be well-prepared to impress your interviewers and secure your dream job.

1.  Why do we need pruning in Decision Trees and what are its benefits?

Pruning is necessary to prevent overfitting in Decision Trees by reducing their complexity. 

Minimum Description Length Pruning minimizes the combined length of the tree and the training data representation. Benefits include reduced computational cost, improved interpretability, and enhanced generalizability.

Welcome to your blog post. Utilize this space to engage with your readers and potential customers in a manner that is current and captivating. Consider it as an ongoing conversation where you can share updates about business, trends, news, and more.

New Perspective: Effective Strategies to Attract Investors and Secure Funding

Transform your blog post subtitle to concisely summarize your content and captivate your audience.

Welcome to your blog post. Utilize this space to engage with your readers and potential customers in a manner that is current and captivating. Consider it as an ongoing conversation where you can share updates about business, trends, news, and more.

Innovative Strategies for Attracting Investors and Securing Funding

Craft a compelling blog post subtitle to succinctly summarize your content and captivate your audience.

Welcome to your blog post. Utilize this space to engage with your readers and potential customers in a manner that is current and captivating. Consider it as an ongoing conversation where you can share updates about business, trends, news, and more.


This section could be used to mention a key piece of content that allows you to create engagement and draw attention to your content. Stuff like quotes, figures, facts etc.

You would need a lot of engaging content, so make sure to keep your blog organized with various categories that also allow visitors to explore more of what interests them.

Use Tags to ensure that Google is able to identify which keywords does your blog relate to and hence show your blog’s link when someone searches similar keywords.

Create Relevant Content

Dividing your content into multiple sections with multiple headings allow you to breakdown the content into smaller blocks this increases engagement, makes it more appealing to read and gets you places where you can add more videos, images and stuff like that.

Create Engagement

Use images, audio files like podcasts, videos and much more to increase retention. Add links to other content in the site. The longer a person stays on your blog, the better the engagement and that ensures better SEO ratings which then translates to more traffic to your site.


More the merrier. This section could be used to mention a key piece of content that allows you to create engagement and draw attention to your content. Stuff like quotes, figures, facts etc.

Create Engagement

Dividing your content into multiple sections with multiple headings allow you to breakdown the content into smaller blocks this increases engagement, makes it more appealing to read and gets you places where you can add more videos, images and stuff like that.

Use images, audio files like podcasts, videos and much more to increase retention. Add links to other content in the site. The longer a person stays on your blog, the better the engagement and that ensures better SEO ratings which then translates to more traffic to your site.


Originally published May 2, 2019