What is advantage of using apply family of functions in r? How do you use lambda in python?
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How to determine the number of clusters in k-means clustering algorithm?
You are about to get on a plane to Seattle, you want to know whether you have to bring an umbrella or not. You call three of your random friends and as each one of them if it's raining. The probability that your friend is telling the truth is 2/3 and the probability that they are playing a prank on you by lying is 1/3. If all 3 of them tell that it is raining, then what is the probability that it is actually raining in Seattle.
What are the various types of selection bias?
Can you define a/b testing?
What is meant by supervised and unsupervised learning in data?
What is cart and chaid? How is bagging different from boosting?
What do you understand by decision tree?
A certain couple tells you that they have two children, at least one of whom is a girl. What is the probability that they have two girls?
How do you handle missing values in python or r?
What is the goal of the clustering?
What is data science with example?
What are the differences between data science, machine learning, and artificial intelligence?
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