Interview FAQs

Guesstimate Section

How to Approach Guesstimation Questions

SAS Interview FAQs with an answer to impress

What is the difference between the "Where" and "Having" statements in Proc SQL?

What Precautions would you take while merging two datasets in SAS?

What is the difference between the Nodupkey and Nodup options in Proc Sort?

What is more efficient, Data step or Proc SQL?

What would you prefer to merge two datasets in SAS : Proc SQL join or Data step merge?

Build a Matrix from simple data ... Please read the article to understand better

Add numbers (including missing) without "Sum function" and "If statements"

Puzzles

Dangerous Interview Puzzles

STATS Interview FAQs with an answer to impress

What is the difference between Z-score and Z-test ?

What is the difference between Error and Residual ?

What do you mean by term "Linear" in Linear Regression ? 

                        or interviewer might ask

If you regress a Y variable with X-square or Log(X) as one of the independent variables, would the equation Y = Beta(0) + Beta(1) X-Square + Beta(2) &%$#*&^ .....  be considered as a equation of linear regression ?

What is multicollinearity and how it affects the regression model?

How can reduce variables before start building the model, in Logistic Regression ?

Humble appeal: 


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