Explain data cleansing?
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Define standard deviation, mean, mode and median.
Which package is used to do data import in r and python?
How do data scientists use statistics?
What is the good measure of influence of a Twitter user?
Define some key performance indicators for the product
Can you define convex hull?
How do you use lambda in python?
Which is the standard data missing marker used in pandas?
Can you enumerate the various differences between supervised and unsupervised learning?
What are the principal components?
Can you explain cross-validation?
Explain Examples of Data Science?