Why is data munging useful?


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More Data Science Interview Questions

Explain collaborative filtering

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You have two sorted array of integers, write a program to find a number from each array such that the sum of the two numbers is closest to an integer i.

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How many dentists are there in US?

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What do you understand by normal distribution?

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What is cluster sampling in data science?

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How can you compute an inverse matrix faster by playing with some computation tricks?

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Explain the method to collect and analyze data to use social media to predict the weather condition?

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You created a predictive model of a quantitative outcome variable using multiple regressions. What are the steps you would follow to validate the model?

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What are the various classification algorithms?

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What is advantage of using apply family of functions in r?

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How different is a mean value different from expected value?

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What do you understand by type I vs type ii error?

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