Data Science Interview Question 4
Most Favorable Data Science Interview Questions and Answers for Beginners
Greetings.
I am a machine learning engineer based in India, possessing a sustained interest in machine learning since my undergraduate studies. I have completed Stanford University's machine learning course (Andrew Ng) via Coursera, and IBM's machine learning and deep learning curriculum. My current focus is on machine learning and data science projects, aiming to leverage my expertise for impactful, real-world problem-solving.
What Questions a Data Analyst or a Data Scientist should Solve While Exploring a Dataset?
To explore your data, you can ask questions from the dataset to understand how you should prepare your data to train machine learning models or gather insights from the data to add value to an organization.
Here are some of the questions you should always ask about your data when working on a data science project:
Is the dataset skewed towards a range of values?
Are there any missing values in the dataset? If yes, what approach you should choose to fill the missing values?
Are there any outliers in the data? If yes, then how you will handle those outliers?
What approach you should use to rescale the data?
How to handle the long tail of categorical features?
