Answer / Pradeep Kumar Pandey

Data Science refers to an interdisciplinary field that uses scientific methods, processes, algorithms, and systems to extract knowledge and insights from structured and unstructured data.

Write a function to check whether a particular word is a palindrome or not.

1 Answers   Microsoft,

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Write a function to extract the first name from the string?

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Suppose that American Express has 1 million card members along with their transaction details. They also have 10,000 restaurants and 1000 food coupons. Suggest a method which can be used to pass the food coupons to users given that some users have already received the food coupons so far.

1 Answers   American Express,

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What is the role of the activation function?

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Explain Data Science Vs Machine Learning?

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Explain about string parsing in R language

1 Answers   Google,

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What is meant by binomial distribution?

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Write the formula to calculate r-square?

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What cross validation technique would you use on time series data set? Is it k-fold or loocv?

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Name three types of biases that can occur during sampling?

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How can you produce co-relations and covariances?

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Can you define linear regression?

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