Data Science Interview Questions
Questions Answers Views Company eMail

What are the major skills data scientist need?

88

In k-means or knn, we use euclidean distance to calculate the distance between nearest neighbors. Why not manhattan distance?

162

Can you explain cross-validation?

82

Can you explain data cleansing?

91

What is the difference between an analyst and a data scientist?

92

What do you understand by type I vs type ii error?

97

Can you explain supervised learning?

96

How do you understand by bias variance trade off?

89

Can you explain data munging or data wrangling?

98

What is difference between sas, r and python programming?

94

Can you define feature vector?

91

What is data scientist?

139

What is the advantage of performing dimensionality reduction before fitting an svm?

94

How is true positive rate and recall related? Write the equation.

97

Can you define data discretization?

79


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Un-Answered Questions { Data Science }

What is an api?

94


In k-means or knn, we use euclidean distance to calculate the distance between nearest neighbors. Why not manhattan distance?

162


Is it possible to capture the correlation between continuous and categorical variable?

114


What is the difference between an analyst and a data scientist?

92


Can you provide examples for other computations in spark?

76






How will you compare the results of various machine learning algorithms?

139


How can I become a data scientist?

137


What are the types of business decisions?

99


why is data cleaning important for analysis?

104


What do you understand by statistical power of sensitivity and how do you calculate it?

117


How will you explain JOIN function in SQL to a 10 year old ?

159


Will Uber cause city congestion?

204


What is a joke that people say about you and how would you rate the joke on a scale of 1 to 10?

110


Can you explain difference between data modeling and database design?

116


How have you overcome a barrier to finding a solution?

87