How Is Sound Measured
The intensity of sound is measured in watt per square metre (Wm-2). The faintest sound that a human ear can... View Article
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The Two Events A And B Have Probabilities 025 And 050 Respectively The Probability That Both A And B Occur Simultaneously Is 014 Then
1) 0.39 2) 0.25 3) 0.904 4) None of these Solution: Option (1) 0.39 Given that, P(A) = 0.25, P(B)... View Article
Let A And B Be Two Events Such That Pa 03 And Pa U B 08 If A And B Are Independent Events Then Pb
1) 5/6 2) 5/7 3) 3/5 4) 2/5 Solution: Option (2) 5/7 Given that, P(A) = 0.3 and P(A U... View Article
If A And B Are Two Independent Events Such That Pa Intersection Bbar 325 And Pabar Intersection B 825 Then Pa
1) 1/5 2) 3/8 3) 2/5 4) 4/5 Solution: Option (1) 1/5 Given that A and B are independent events.... View Article
In A Certain Population 10 Of The People Are Rich 5 Are Famous And 3 Are Rich And Famous The Probability That A Person Picked At Random
1) 0.07 2) 0.08 3) 0.09 4) 0.12 Solution: Option (3) 0.09 Let R be the event of being rich... View Article
The Probabilities That A And B Will Die Within A Year Are P And Q Respectively Then The Probability That Only One Of Them Will Be Alive
1) p+q 2) p+q-2pq 3) p+q-pq 4) p+q+pq Solution: Option (2) p+q-2pq Given that, the probability that A will die... View Article
If A And B Are Two Events Such That Paub Plus Pa Intersection B 78 And Pa 2pb Then Pa
1) 7/12 2) 7/24 3) 5/12 4) 17/24 Solution: Option (1) 7/12 We know that P(AUB) = P(A) + P(B)... View Article
If A And B Are Two Events Such That Paub 56 Pa Intersection B 13 And Pb Bar 13 Then Pa
1) 1/4 2) 1/3 3) 1/2 4) 2/3 Solution: Option (3) 1/2 We know that P(AUB) = P(A) + P(B)... View Article
If The Probability Of A Horse A Winning A Race Is 14 And The Probability Of A Horse B Winning The Same Race Is 15 Then The Probability That Either
1) 1/20 2) 9/20 3) 11/20 4) 19/20 Solution: Option (2) 9/20 Let A be the event that horse A... View Article
If An Integer Is Chosen At Random From First 100 Positive Integers Then The Probability That The Chosen Number Is A Multiple Of 4 Or 6 Is
1) 41/100 2) 33/100 3) 1/10 4) None of these Solution: Option (2) 33/100 Total cases = 100 Let A... View Article
A Card Is Drawn From A Pack Of Cards Find The Probability That The Card Will Be Queen Or A Heart
1) 4/3 2) 16/3 3) 4/13 4) 5/3 Solution: Option (3) 4/13 Total cards in a pack = 52 Total... View Article
If A And B Are Two Independent Events Such That Pa 040 Pb 050 Find Pneither A Nor B
1) 0.90 2) 0.10 3) 0.2 4) 0.3 Solution: Option (4) 0.3 Given that P(A) = 0.40, P(B) = 0.50... View Article
The Probability Of Happening At Least One Of The Events A And B Is 06 If The Events A And B Happens Simultaneously With The Probability 02
1) 0.4 2) 0.8 3) 1.2 4) 1.4 Solution: Option (3) 1.2 Give that P(AUB) = 0.6, P(A∩B) = 0.2.... View Article
If A And B Are Two Mutually Exclusive Events Then Pa Plus B
1) P(A) + P(B) – P(AB) 2) P(A) – P(B) 3) P(A) + P(B) 4) P(A) + P(B) + P(AB)... View Article
A Coin Is Tossed Twice If Events A And B Are Defined As A Head On First Toss B Head On Second Toss Then The Probability Of A U B
1) 1/4 2) 1/2 3) 1/8 4) 3/4 Solution: Option (4) ¾ If a coin is tossed twice, the sample... View Article
If A And B Are Any Two Events Then The Probability That Exactly One Of Them Occur Is
1) P(A)+P(B)- P(A∩B) 2) P(A)+P(B)-2P(A∩B) 3) P(A)+P(B)-P(AUB) 4) P(A)+P(B)-2P(AUB) Solution: Option (2) P(A)+P(B)-2P(A∩B) Given that A and B are the... View Article
If Pa 04 Pb X Paub 07 And The Events A And B Are Mutually Exclusive Then X
1) 3/10 2) 1/2 3) 2/5 4) 1/5 Solution: Option (1) 3/10 Given: P(A)=0.4, P(B)= x, P(AUB)=0.7 P(AUB) = P(A)+... View Article
Probability That A Student Will Succeed In The Iit Entrance Test Is 02 And That He Will Succeed In The Roorkee Entrance Test Is 05 If The Probability
1) 0.4 2) 0.3 3) 0.2 4) 0.6 Solution: Option (4) 0.6 Let A be the event that a student... View Article
If The Probability Of X To Fail In The Examination Is 03 And That For Y Is 02 Then The Probability That Either X Or Y Fail In The Examination Is
1) 0.5 2) 0.44 3) 0.6 4) None of these Solution: Option (2) 0.44 The probability that X fails in... View Article
Suppose That A B C Are Events Such That Pa Pb Pc 14 Pab 0 Pac 18 Then Pa B
1) 0.125 2) 0.25 3) 0.375 4) 0.5 Solution: Option (4) 0.5 Given that, P(A) = P(B) = P(C) =... View Article
