Define a sql query? How do you use sql in sas, python, r languages?
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Do you prefer python or r for text analytics?
Do we have different selection biases, if yes, what are they?
What is the supervised learning?
Can you define a/b testing?
What packages are used for data mining in python and r?
What is the law of large numbers?
What skills do you need to be a data analyst?
Pick up a coin C1 given C1+C2 with probability of trials p (h1) =.7, p (h2) =.6 and doing 10 trials. And what is the probability that the given coin you picked is C1 given you have 7 heads and 3 tails?
What do you mean by cluster sampling and systematic sampling?
Is it possible to perform logistic regression with Microsoft Excel?
How will you explain JOIN function in SQL to a 10 year old ?
A box has 12 red cards and 12 black cards. Another box has 24 red cards and 24 black cards. You want to draw two cards at random from one of the two boxes, which box has a higher probability of getting cards of same colour and why?
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