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If Three Dice Are Thrown Together Then The Probability Of Getting 5 On At Least One Of Them Is

1) 125/216 2) 215/216 3) 1/216 4) 91/216 Solution: Option (5) 91/216 By using binomial distribution, p=⅙, q= ⅚, n=... View Article

A Fair Coin Is Tossed N Times If The Probability That Head Occurs 6 Time Is Equal To The Probability That Head Occurs 8 Time Then N Is Equal To

1) 15 2) 14 3) 12 4) 7 Solution: Option (2) 14 By using binomial distribution, The probability that head... View Article

In A Box Of 10 Electric Bulbs Two Are Defective Two Bulbs Are Selected At Random One After The Other From The Box The First Bulb After Selection

1) 9/25 2) 16/25 3) 4/5 4) 8/25 Solution: Option (2) 16/25 Total number of bulbs = 10 Out of... View Article

In A Box Containing 100 Eggs 10 Eggs Are Rotten The Probability That Out Of A Sample Of 5 Eggs None Is Rotten If The Sampling Is

1) (1/10)5 2) (1/5)5 3) (9/5)5 4) (9/10)5 Solution: Option (4) (9/10)5 Given that total number of eggs = 100.... View Article

8 Coins Are Tossed Simultaneously The Probability Of Getting At Least 6 Heads Is

1) 57/64 2) 229/259 3) 7/64 4) 37/256 Solution: Option (4) 37/256 By using binomial distribution, the required probability is:... View Article

A Bag X Contains 2 White And 3 Black Balls And Another Bag Y Contains 4 White And 2 Black Balls The Probability For The Ball Chosen Be White Is

1) 2/15 2) 7/15 3) 8/15 4) 14/15 Solution: Option (3) 8/15 Let E1 be the event that the ball... View Article

A Bag A Contains 2 White And 3 Red Balls And Bag B Contains 4 White And 5 Red Balls One Ball Is Drawn Is Found To Be Red From Bag B Was

1) 5/14 2) 5/16 3) 5/18 4) 25/52 Solution: Option (4) 25/52 Let E1 be the event that the ball... View Article

One Die Is Thrown Three Times And The Sum Of The Thrown Numbers Is 15 The Probability For Which Number 4 Appears In First Throw

1) 1/18 2) 1/36 3) 1/9 4) 1/3 Solution: Option (1) 1/18 Let A be the event of getting a... View Article

Two Cards Are Drawn One By One From A Pack Of Cards The Probability Of Getting First Card An Ace And Second A Colored One Is

1) 1/26 2) 5/52 3) 5/221 4) 4/13 Solution: Option (3) 5/221 Let E1 be the event of getting an... View Article

For Two Events A And B If Pa Pabyb 14 And Pbbya 12 Then

1) A and B are independent 2) P(A’/B) = 3/4 3) P(B’/A’) = 1/2 4) All of the above Solution:... View Article

A And B Are Two Events Such That Pa 08 Pb 06 And Pa Intersection B 05 Then The Value Of Pabyb Is

1) 5/6 2) 5/8 3) 9/10 4) None of these Solution: Option (A) 5/6 Given that, P(A) = 0.8, P(B)=... View Article

A Coin Tossed Three Times In Succession If E Is The Event That There Are At Least Two Heads F Is The Event In Which First Throw Is A Head Then Pef

1) 3/4 2) 3/8 3) 1/2 4) 1/8 Solution: Option (1) 3/4 If a coin is tossed, the sample space... View Article

In An Entrance Test There Are Multiple Choice Questions There Are Four Possible Answers To Each Question Of Which One Is Correct The Probability

1) 37/40 2) 1/37 3) 36/37 4) 1/9 Solution: Option (B) 1/37 Let X be the event that the student... View Article

In A Certain Town 40 Of The People Have Brown Hair 25 Have Brown Eyes And 15 Have Both Brown Hair And Brown Eyes If A Person Selected

1) 1/5 2) 3/8 3) 1/3 4) 2/3 Solution: Option (3) ⅜ Let A be the event that the people... View Article

The Die Is Tossed And You Are Told That Either Face 1 Or 2 Has Turned Up Then The Probability That Is Face 1 Is

Face 1 2 3 4 5 6 Probability 0.1 0.32 0.21 0.15 0.05 0.17 1) 5/21 2) 5/22 3) 4/21... View Article

If C And D Are Two Events Such That C D And Pd Notequals 0 Then The Correct Statement Among The Following Is

A Letter Is Known To Have Come Either From London Or Clifton On The Postmark Only The Two Consecutive Letters On Are Eligible The Probability

1) 5/17 2) 12/17 3) 17/30 4) 3/5 Solution: Option (2) 12/17 Let X be the event that selects a... View Article

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