1.  logex

2.  2logx

3.  x

4.  1-x

View Answer  
4
Correct Answer :

x


Explanation :
No Explanation available for this question

Two dice are thrown twice.The probability that the 1st throw will give a sum of 7 points and second throw a sum of 11 points is

1.  7/108

2.  5/108

3.  1/108

4.  3/108

View Answer  
4
Correct Answer :

1/108


Explanation :
No Explanation available for this question

An ordinary die has 4 blank faces,one face marked 2 and another marked 3.Then the probability of obtaining a total of 0 points in 5 throws is

1.  (1/6)5

2.  (1/2)5

3.  (2/3)5

4.  (1/4)5

View Answer  
4
Correct Answer :

(2/3)5


Explanation :
No Explanation available for this question

Three cards are drawn successively with replacement.The probability of obtaining 2 aces and 1 king is

1.  1/133

2.  2/133

3.  3/133

4.  5/133

View Answer  
4
Correct Answer :

3/133


Explanation :
No Explanation available for this question

A bag contains 10 white and 8 black balls.Two successive drawings of 2 balls are made.The probability that the 1st draw will give 2 white and the 2nd draw will give 2 black if the drawing is without repla

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

If the probability distribution of a random variable X is

1.  1

2.  2

3.  1.5

4.  2.5

View Answer  
4
Correct Answer :

1


Explanation :
No Explanation available for this question

If the probability distribution of a random variable X isThen second about 0 i,e,M21(0)=

1.  2.16

2.  2.8

3.  (2.16)1/2

4.  (2.8)1/2

View Answer  
4
Correct Answer :

2.8


Explanation :
No Explanation available for this question

A random variable X has the following distribution

1.  1/10,3/5

2.  1/10,3/10

3.  3/10,1/10

4.  1/24,5/12

View Answer  
4
Correct Answer :

1/10,3/10


Explanation :
No Explanation available for this question

The value of C for which P(X=k)=CK2 can be the probability mass function of a random variable x that takes values 0,1,2,3,4 is

1.  1/30

2.  1/10

3.  1/3

4.  1/15

View Answer  
4
Correct Answer :

1/30


Explanation :
No Explanation available for this question

From a lot of 10 iteams containing 3 defectives,a sample of 4 items is drawn at random without replacement. The expected number of defective items is

1.  3

2.  1.8

3.  1.2

4.  2.8

View Answer  
4
Correct Answer :

1.2


Explanation :
No Explanation available for this question
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