In einem Vorstellungsgespräch für Datenwissenschaftler stellen Arbeitgeber wahrscheinlich Fragen zur Beurteilung Ihrer Kompetenzen in Datenmodellierung, Problemlösung und Programmierung. Bereiten Sie sich darauf vor, allgemeine Fragen zu beantworten, die Ihre Kenntnisse in Statistik und Datenwissenschaft testen sollen. Sie müssen evtl. auch offene Fragen beantworten, mit denen Ihre Kreativität, Kommunikationsfähigkeiten und Ihre Ausbildung in Datenmodellierung und Programmierung geprüft werden.
Given an event-level table of interactions between pairs of users (note that there aren't duplicates in one day for one pair of users), for each possible number of "people interacted with" find the count for that group in a given day (i.e. 10 people interacted with only one person, 20 with 2, etc.).
What is the expectation of the variance?
How can Facebook figure out when users falsify their attended schools?
Measure difference between two vectors
What machine learning model would you use to classify fraudulent transactions on credit cards?
Tell a time when you had to persuade a time.
If you can build a perfect (100% accuracy) classification model to predict some customer behavior, what will be the problem in application?
When you have a time series data by monthly, it has large data records, how will you find out significant difference between this month and previous month
Ho 5 zucche, pesate a coppie, e le pesate sono 21kg, 22kg, etc. . Come posso trovare il peso totale delle zucche?
Some Algorithmic questions followed by stats question. No SQL
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