What are an eigenvalue and eigenvector?
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What does a data scientist do?
What is the probability of pulling a different shape or a different colour card from a deck of 52 cards?
while working on a data set, how can you select important variables? Explain
How is data modeling different from database design?
How will you overcome overfitting in predictive models?
What is the degree of freedom for lasso?
Why is resampling done?
Explain the decision tree algorithm, and how is it different from the random forest algorithm?
What is the good measure of influence of a Twitter user?
Define a sql query? How do you use sql in sas, python, r languages?
what the aim of conducting a/b testing?
What is underfitting?