Data Science Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Data Science Interview Questions

Questions Answers Views Company eMail

Define the term cross-validation

what the aim of conducting a/b testing?

What is the k-means clustering method?

121

Name various types of deep learning frameworks

134

State the difference between the expected value and mean value?

Explain auto-encoder

How do you overcome challenges to your findings?

106

Discuss normal distribution

Explain cluster sampling technique in data science

149

What is the importance of having a selection bias?

104

Explain the steps for a data analytics project

114

Treating a categorical variable as a continuous variable would result in a better predictive model?

Name three types of biases that can occur during sampling?

113

What is a recall?

Explain the method to collect and analyze data to use social media to predict the weather condition?

240

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Un-Answered Questions { Data Science }

What is the return type of the function ID?

132

What data structures are available in the Pandas package in Python programming language?

125

Give a large dataset, find the median.

125

Define feature vector?

153

How can you decide if one algorithm is better than the other?

120

Find out K most frequent numbers from a given stream of numbers on the fly.

103

How to choose the right chart in case of creating a viz?

How can you produce co-relations and covariances?

103

Define the term cross-validation

When underfitting occurs in a static model?

148

Explain auto-encoder

What are apis used for?

Define a sql query? What is the difference between select and update query? How do you use sql in sas, python, r languages?

101

Can you explain the difference between a validation set and a test set?

How will you overcome overfitting in predictive models?

121

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