Define a sql query? What is the difference between select and update query?


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More Data Science Interview Questions

What is the difference between bayesian estimate and maximum likelihood estimation (mle)?

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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.

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What devices or tools help you most as a data scientist?

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What is the central limit theorem? How is a normal distribution different from chi square distribution?

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Explain the importance of 80/20 rule in model validation?

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How do you understand by bias variance trade off?

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what is the difference between extrapolation and interpolation?

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What does sas stand out to be the best over other data analytics tools?

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What are the variants of back propagation?

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Do gradient descent methods always converge to the same point?

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What is column storage? What is a document database?

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Explain difference between binomial and Poisson distribution?

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