What is data science?
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Explain data preparation?
Why do you want to work as a data scientist?
What is selection bias and why does it matter?
Which is the standard data missing marker used in pandas?
State some use cases where Hadoop MapReduce works well and where it does not.
How would churn help predict and control churn for a customer?
How would you do market basket analysis in r and python?
What are generators in Python?
What is a z test?
What are the key elements of the statistical graphics?
Explain the difference between a validation set and a test set?
Explain why data cleansing is essential and which method you use to maintain clean data?