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What is logistic and linear regression? How do you treat multicollinearity and heteroscedasticity in regression?
313Define a sql query? What is the difference between select and update query? How do you use sql in sas, python, r languages?
387Post New Data Science Questions
Explain about the box cox transformation in regression models?
Why we need ggplot?
Why is DBSCAN required?
What are disadvantages of bootstrap development?
Implementing pow function
Name some kinds of graphs and explain how you would build them in python or r.
A stranger uses a search engine to find something and you do not know anything about the person. How will you design an algorithm to determine what the stranger is looking for just after he/she types few characters in the search box?
Explain how to define the number of clusters in a clustering algorithm?
You own a clothing enterprise and want to improve your place in the market. How will you do it from the ground level ?
What is need of principal component analysis?
What is logistic and linear regression?
Given 2 vectors, how will you generate a sorted vector?
Differentiate between univariate, bivariate and multivariate analysis?
What is chi square test?
What is nosql? Name some examples of nosql databases. What is a key value store? What is column storage? What is a document database?
