What is the most important factor that affects revenue as it pertains to a grocery store?
Data Scientists Interview Questions
54,330 data scientists interview questions shared by candidates
What metrics have you used to evaluate a model in the past?
What will you do when a disagreement occurs?
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.
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