Given a list, create a new list that does not include the duplicates of the original list.
Data Scientist Interview Questions
Data Scientist Interview Questions
Lors d’un entretien pour le poste de data scientist, les employeurs vont poser des questions leur permettant d’évaluer vos compétences en modélisation des données, résolution des problèmes et programmation. Soyez préparé à répondre à des questions générales testant vos connaissances en statistiques et en science des données. Vous devez également être prêt à répondre à des questions ouvertes permettant de tester votre créativité, vos compétences en communication et votre éducation formelle en modélisation des données et en programmation.
Questions d'entretien d'embauche fréquentes pour un data scientist (H/F) et comment y répondre
Question 1 : Quelles techniques de modélisation des données préférez-vous et pourquoi ?
Question 2 : Comment détectez-vous les faux comptes Instagram utilisés pour escroquer les clients ?
Question 3 : Décrivez des situations qui requièrent une liste, un uplet ou un ensemble sur Python.
54,215 data scientist interview questions shared by candidates
pros and cons of random forest and why
How to test a fair coin?
How many sub-spaces can 4 lines divide in 2D? How many sub-spaces can 4 hyperplanes divide in 3D?
Sample k items uniformly at random in a streaming fashion from a list of unknown length.
Case study
10 questions to do in 2 hours.
what is entropy
3 questions, two sql+ 1 python (though can be also easily solved with sql). The sql question is about finding the most popular track and for each track, the day it had most popularity. the python question is about adding certain advs. seconds on every 3,5,15 stream a user had. The interviewer appears having limited experience with sql, as both interviewers had moments first doubting my code, then admit they made mistake. As one example, when doing an inner joining of two tables I had 'From tableA a, tableB b where a.metric=b.metric, the interviewer first asked me where's my inner joining of the two tables, as in her mind it should be written as 'From TableA a inner join TableB b on a.metric=b.metric'. After I explained, she realized both ways writing are equivalent. Though I got all three questions right and well explained, I did not pass the tech interview and there was no feedback.
Given a cube and a random walker on the cube, find the expected value of the # of steps that the random walker takes to reach the opposite vertex of the cube.
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