How to check the frequency distribution of a categorical variable?
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How will you find the second largest element in a Binary Search tree ?
Define standard deviation, mean, mode and median.
What is the importance of selection bias?
What do you mean by word data science?
Explain p-value?
What is advantage of using apply family of functions in r? How do you use lambda in python?
What is meant by linear regression?
Explain types of clustering algorithm?
How do you take millions of users with 100's of transactions each, amongst 10000's of products and group the users together in a meaningful segments?
How do data scientists use statistics?
What is k-means?
What is the probability of pulling a different shape or a different colour card from a deck of 52 cards?