A test has a true positive rate of 100% and 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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Write a function to extract the first name from the string?

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Explain data wrangling?

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Name three disadvantages of using a linear model?

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How will you design the heatmap for Uber drivers to provide recommendation on where to wait for passengers? How would you approach this?

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How do you use goal seek in excel?

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On rolling a dice if you get $1 per dot on the upturned face,what are your expected earnings from rolling a dice?

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

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If you had to choose between the programming languages r and python, which one would you use for text analytics?

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Explain the benefits of using statistics by data scientists

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How can outlier values be treated?

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Name some packages in r and python for building regression models.

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