UPSC 2021: Weekly GK and Current Affairs Quiz Jan 02 – Jan 08
UPSC 2021: Weekly GK and Current Affairs Quiz Jan 02 – Jan 08 with Multiple Choice Questions and answers for... View Article
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02 Jan 2021: UPSC Exam Comprehensive News Analysis
CNA 02 Jan 2021:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related HEALTH 1.... View Article
01 Jan 2021: PIB Summary & Analysis
January 1st, 2021, PIB:- Download PDF Here TABLE OF CONTENTS 1. Defense Research and Development Organisation (DRDO) 2. Remission of... View Article
31 Dec 2020: The Hindu Analysis
UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 31st December 2020. Important news and... View Article
31 Dec 2020: UPSC Exam Comprehensive News Analysis
CNA 31 Dec 2020:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related INTERNATIONAL RELATIONS... View Article
What is truth table and its significance
The truth table is a mathematical table which gives the breakdown of the logical function by listing all the values... View Article
Three Coins Are Tossed If One Of Them Shows Tail Then The Probability That All Three Coins Show Tail Is
1) 1/7 2) 1/8 3) 2/7 4) 1/6 Solution: Option (1) 1/7 Let us assume that A be the event... View Article
A Pair Has Two Children If One Of Them Is Boy Then The Probability That Other Is Also A Boy Is
1) 1/2 2) 1/4 3) 1/3 4) None of these Solution: Option (3) ⅓ Total cases = 4 = {BB,... View Article
If 4pa 6pb 10pa Intersectin B 1 Then Pb By A
1) 2/5 2) 3/5 3) 7/10 4) 19/60 Solution: Option (1) ⅖ Given that, 4P(A) = 6P(B) = 10P(A∩B) =... View Article
If E And F Are Independent Events Such That 0 Lt Pe Lt 1 And 0 Lt Pf Lt 1 Then
1) E and Fc (the complement of the event F) are independent 2) Ec and Fc are independent 3) P(E/F)... View Article
If A And B Are Two Independent Events Then Pa By B
1) 0 2) 1 3) P(A) 4) P(B) Solution: Option (3) P(A) P(A/B) = P(A∩B) /P(B) As, A and B... View Article
If A And B Are Two Events Such That A Subset B Then Pb By A
1) 0 2) 1 3) 1/2 4) 1/3 Solution: Option (2) 1 Given that A ⊆ B It means that... View Article
If The Events A And B Are Mutually Exclusive Then Pa By B
1) 0 2) 1 3) P(A∩B)/P(A) 4) P(A∩B)/P(B) Solution: Option (1) 0 P(A/B) = P(A∩B)/P(B) If the events are mutually... View Article
If A And B Are Two Events Such That Pa 38 Pb 58 And Paub 34 Then Pa By B
1) 2/5 2) 2/3 3) 3/5 4) None of these Solution: Option (1) ⅖ P(A/B) = P(A∩B)/P(B) We know, P(AUB)... View Article
If A And B Are Two Events Such That Pa 13 Pb 14 And Paintersectionb 15 Then Pbbar By Abar
1) 37/40 2) 37/45 3) 23/40 4) None of these Solution: Option (1) 37/40 P(B’/A’) = P(A’∩B’) /P(A’) P(B’/A’) =... View Article
In A Single Throw Of Two Dice What Is The Probability Of Obtaining A Number Greater Than 7 If 4 Appears On The First Dice
1) 1/3 2) 1/2 3) 1/12 4) None of these Solution: Option (2) 1/2 If two dice are thrown, the... View Article
If A And B Are Two Events Such That Pa Notequals 0 Pb Notequals 1 Then Pabar By Bbar
1) 1-P(A/B) 2) 1-P(A’/B) 3) [1-P(AUB)]/P(B’) 4) P(A’)/P(B’) Solution: Option (3) [1-P(AUB)]/P(B’) P(A’/B’) = P(A’∩B’)/P(B’) P(A’/B’) = (1-P(AUB))/P(B’)
Two Dice Are Thrown What Is The Probability That The Sum Of The Numbers Appearing On The Two Dice Is 11 If 5 Appears On The First
1) 1/36 2) 1/6 3) 5/6 4) None of these Solution: Option (2) 1/6 If two dice are thrown, the... View Article
The Probability Distribution Of A Random Variable X Is Given As Follows The Value Of P Is
The probability distribution of a random variable X is given as follows. X -5 -4 -3 -2 -1 0 1... View Article
Let E1 E2 Be Two Mutually Exclusive Events Of An Experiment With Pnot E2 06 Pe1ue2 Then Pe1
1) 0.1 2) 0.3 3) 0.4 4) 0.2 Solution: Option (4) 0.2 Given that P(E2’) = 0.6, Hence, P(E2) =... View Article
