# Research Aptitude MCQ - Research Aptitude

21:

Who is regarded the father of scientific social surveys ?

 A. Darwin B. Booth C. Best D. None of these Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. diwakar said: (6:28pm on Monday 9th February 2015) Best is the father of scientific social setveys Write your comments here:
22:

All are example of qualitative variables except

 A. religion and castes B. sex C. observation D. interest of the subject Answer Report Discuss Option: D Explanation : Click on Discuss to view users comments. pearl said: (11:51pm on Tuesday 20th October 2015) i have not understood the question ,can anyone elaborate how the given options given under the domain of qualitative variables ? divya said: (8:51am on Wednesday 22nd June 2016) not clear, i thought the answer wud have been B or C D Deelip said: (1:53am on Friday 27th October 2017) c might be the answer as observation is nothing to do with the data Prof. ch.v.rama krishna rao said: (2:27am on Thursday 5th April 2018) the answer is c. i.e., observation. remaining all are qualitative how can u measure religion , sex and interest on subject. whereas if you are observing the number of units produced by a worker per hour. you can put into numbers. hence the c is the correct answer. not at all d Write your comments here:
23:

Formulation of hypothesis may not be necessary in

 A. survey studies B. fact finding (historical) studies C. normative studies D. experimental studies Answer Report Discuss Option: B Explanation : Click on Discuss to view users comments. huma said: (10:15pm on Sunday 25th December 2016) what is hypothesis ? Write your comments here:
24:

Logic of induction is very close to

 A. the logic of sampling B. the logic of observation C. the logic of the controlled variable D. none of the above Answer Report Discuss Option: A Explanation : Click on Discuss to view users comments. Write your comments here:
25:

The probability of a head and a  tail of tossing four coins simultaneously is

 A. 1/8 B. 1/16 C. 1/4 D. 1/64 Answer Report Discuss Option: B Explanation : If there is only one coin the probability of its being head and tail is 50% - 50%. If coins are two then each will have 25% chance of getting down head and tail. Now if coins are four this chance will be 12*1/2% each and so on. Click on Discuss to view users comments. Write your comments here: