You have been given the data on Facebook user's friending or defriending each other. How will you determine whether a given pair of Facebook users are friends or not?

0 Answers   Facebook,

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How has your prior experience prepared you for a role in data science?

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How can I achieve accuracy in the first model that I built?

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What are the types of biases that can occur during sampling?

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How would churn help predict and control churn for a customer?

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Which laptop is best for data analysis?

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What is term Pearson’s Correlation Coefficient?

0 Answers  

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Will Uber cause city congestion?

0 Answers   Uber,

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A test has a true positive rate of 100% and a false-positive rate of 5%. There is a population with a 1/1000 rate of having the condition the test identifies. Considering a positive test, what is the probability of having that condition?

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How would you create a taxonomy to identify key customer trends in unstructured data?

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How will you decide whether a customer will buy a product today or not given the income of the customer, location where the customer lives, profession and gender? Define a machine learning algorithm for this.

0 Answers   Amazon,

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Can you cite some examples where a false positive is important than a false negative?

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