Data researcher Interview Questions | Glassdoor.co.in

# Data researcher Interview Questions

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### Senior Research Executive at Blue Dart Express was asked...

18 Oct 2013
 Will you like to work in Courier company?11 AnswersYesYesYesShow more responsesYesYesYes, because currently i am working in FedEx express pvt ltd. Which is belongs to same industryYasYesYesYesYes

26 Jun 2013

### Quantitative Researcher at WorldQuant was asked...

6 Aug 2012
 Minimize the number of comparisons for finding minimum and maximum of a given set of numbers.6 AnswersGiven n numbers, the optimal number of comparison should be 3n/2 Pairwise compare all numbers = n/2 comparisons It is easy to see that the max, min lies among the n/2 elements which are greater, smaller respectively. Pairwise compare the n/2 greater elements = n/4 comparisons. Again pairwise compare the n/4 greater elements obtained in previous step = n/8 comparions. ... You get max(min) in n/4+n/8+...1 = n/2 comparisons. initial comparisons = n/2 comparisons to get max number = n/2 comparisons to get min number = n/2 Total = 3n/2Here is matlab code according to the suggested algorithm : clear; clc; vec=[3,8,7,2,1,6,5,4]; [max12,min12]=max_min(vec(1),vec(2)); [max34,min34]=max_min(vec(3),vec(4)); [max56,min56]=max_min(vec(5),vec(6)); [max78,min78]=max_min(vec(7),vec(8)); [max1234,~]=max_min(max12,max34); [max5678,~]=max_min(max56,max78); [max12345678,~]=max_min(max1234,max5678); fprintf('max=%d\n',max12345678); % Find Min [~,min1234]=max_min(min12,min34); [~,min5678]=max_min(min56,min78); [~,min12345678]=max_min(min1234,min5678); fprintf('min=%d\n',min12345678);More on the above analytic solution: The resulting sequence is geometric with missing first two terms, n + n/2. Sum of a geometric sequence n + n/2 + n/4 + ... + 1 = 2n So for the present sequence: sum = 2n - n - n/2 = n/2 Thus the minimum number of steps required for finding BOTH the minimum and maximum of the set of numeric values is 3n/2. However, to calculate only minimum or maximum, the minimum number of steps would be (n-1) by pairwise comparison.Show more responsesBy the same logic it is n-1 when only maximum or minimum has to be found out from n nos., the correct answer will be n/2 + (n/2-1)+(n/2-1) = 3n/2-2if n is even, 1+3*(n-2)/2=3n/2-2 if n is odd, 3(n-1)/2-2+2=3(n-1)/2Comparison would be less if the range is less with minimum to maximum

### Research Associate at S&P Global was asked...

15 Feb 2016
 Recent Economic Activity - Throw some light on the facts Stock Exchange based questions Accounting principles and terms Terms related to financial statements6 AnswersHI Congratulations for your new job...can u please tell me that in how much time did you get the offer letter and have u been contacted by HR Samridhi Verma...The process takes time, can be from 7 - 30 days. You can always write to them in case it's been longer than this. Wish you luck!HI...have they directly informed you on the spot that you have been selected or the HR has caleed you back after some days??Show more responsesThey update later not at the spot, generally they drop you an e-mail to inform you - When did you have your last round ?I had my last round with the director 0n 03/02/2016 but still waiting for their replyThe process takes time, so you can wait or you can write them an e-mail to know the status if you are positive

### Research Analyst at Thomson Reuters was asked...

26 Aug 2017
 Tell me about yourself?5 AnswersDid they announce the results and give the offer on the same day?No, it will take time . I am waiting for result.Okay all the bestShow more responsesHow much is the package & was it for level 1?Anyways all the best!

### Research Data Analyst at Morningstar was asked...

31 Jul 2018
 Everything related to basic accounts. Questions on P&L and Balance Sheet.5 AnswersBasic account mean which questions plz give me some examplesBasic account mean which questions plz give me some examplesBasic account mean which questions plz give me some examplesShow more responsesBasic account mean which questions plz give me some examplesAccounting principles, finance terms, entries etc

### Research Officer at Bharat Serums and Vaccines was asked...

7 Feb 2017
 basics of fermentation5 AnswersLactic acid fermentation is called lacto fermentation in which yeast and bacteria convert lactic acid into sugar . Another is ethyl Alcohol fermentation also done by yeast and some other microorganisms in which carbohydrates converts into alcohol.Lactic acid fermentation is called lacto fermentation in which yeast and bacteria convert lactic acid into sugar . Another is ethyl Alcohol fermentation also done by yeast and some other microorganisms in which carbohydrates converts into alcohol.Lactic acid fermentation is called lacto fermentation in which yeast and bacteria convert lactic acid into sugar . Another is ethyl Alcohol fermentation also done by yeast and some other microorganisms in which carbohydrates converts into alcohol.Show more responsesLactic acid fermentation is called lacto fermentation in which yeast and bacteria convert lactic acid into sugar . Another is ethyl Alcohol fermentation also done by yeast and some other microorganisms in which carbohydrates converts into alcohol.Lactic acid fermentation is called lacto fermentation in which yeast and bacteria convert lactic acid into sugar . Another is ethyl Alcohol fermentation also done by yeast and some other microorganisms in which carbohydrates converts into alcohol.

20 Dec 2013