When do you need to update the algorithm in data science?
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What is the 80/20 rule? Explain its importance in model validation?
How to install the ggplot2 package?
What is cart and chaid? How is bagging different from boosting?
Explain about the box cox transformation in regression models?
What is term Pearson’s Correlation Coefficient?
Find out K most frequent numbers from a given stream of numbers on the fly.
How would add new Facebook members to the database of members, and code their relationships to others in the database?
A test has a true positive rate of 100% and false positive rate of 5%. There is a population with a 1/1000 rate of having the condition the test identifies. Considering a positive test, what is the probability of having that condition?
Give an example of a data set that has a non-gaussian distribution?
What is the common perception of visualization?
Do you prefer python or r for text analytics?
How do you treat missing values during analysis?