What are eigenvectors and eigenvalues?
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What is correlation in R?
Define cluster sampling?
What is the differences between univariate, bivariate and multivariate analysis?
Create a program in a language of your choice to read a text file with various tweets. The output should be 2 text files-one that contains the list of all unique words among all tweets along with the count for repeated words and the second file should contain the medium number of unique words for all tweets.
What is logistic and linear regression? How do you treat multicollinearity and heteroscedasticity in regression? Name some packages in r and python for building regression models.
What is the difference between bayesian estimate and maximum likelihood estimation (mle)?
Write the formula to calculate r-square?
How many people are using Facebook in California at 1.30 PM on Monday?
Define a sql query? What is the difference between select and update query? How do you use sql in sas, python, r languages?
How will you fix multi-colinearity in a regression model?
Define a sql query? How do you use sql in sas, python, r languages?
Pycharm has a debugger?