What will you do when a disagreement occurs?
Data Scientists Interview Questions
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Details: 2 SQL questions involving 3 different tables in a database: Table 1 contained subscription payment data by `subscriber_id` and `date` (renewal data, new subscription date), Table 2 contained subscriber personal details (gender, age, location, etc), Table 3 contained stream details by subscriber_id (subscriber_id, content_id, seconds streamed, timestamp, content_title). Question 1: find number of daily active subscriptions in 2019. Question 2: find number of male subscribers who watched at least 3 unique titles in August, being careful not to count titles that were streamed for less than 3 seconds.
- 1 Python question: build a class that takes an array as input, and define a function that tkaes
1. What is multicollinearity? 2. How can you detect Multicollinearity between variables? 3. How would you eliminate multicollinearity in data for use in a model?
Could you describe your routine day at previous position?
We are implementing shared rides and considering adding in a 30 seconds waiting period for our algorithm to identify additional matches. What metrics would you use to evaluate this, and how would you run this experiment?
What is the p-value of a binomial distribution?
Fiverr buisness question about which search keywords present to anonymous new visitor. What is the KPI of metric you want to choose for testing your AB test of which keywords present to a know user, using its search history and similar users data.
1. Describe past projects to details. 2. How would you predict cohorts LTV? 3. Describe an algorithm for identifying the center of an eye in a photo.
I was asked to prepare a video demonstrating how I would explain machine learning to a non-technical audience.
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