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Junior data scientist Interview Questions


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If a jar has X red balls and Y blue balls, what is the minimum number of draws that is necessary to ensure that you have one ball of each color?

3 Answers

max(X, Y)+1

min(X,Y) + 1 is correct, not max()

It is max, the first reply was correct. I you have 5 blue balls and 2 red balls : - If it was min : you take 3 balls, it is still possible to have picked 3 blue balls. - with max : you take 6 balls, the worst case is that you have picked 5 blue and 1 red balls.

If the coefficient of an independent variable in linear regression has an opposite sign than it should be, what might be the reason

1 Answer

If you have a bag of jelly beans with a large number of two different colors, whats the minimum you need to pick out to guarantee that you have at least 2 of the same color? Then the question in the general case.

1 Answer

Taje a jar with stones of three colors, how many draws do you need to get two stones of the same color? Generalise to n colors, k stones.

1 Answer

How many windows are there in NYC? They didn't expect a number but more about the thought process.

1 Answer

What is your salary requirement?

1 Answer

10 questions through SurveyMonkey, questions were copied from the internet

1 Answer

Q. What is your favorite data science blog / What is your favorite book

1 Answer

Name three consecutive days without using names of days (of the week).

1 Answer

Talked about my experiences and Education and had a take-home assignment.

1 Answer
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