1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

1.  5

2.  -5

3.  8

4.  -8

4

8

Explanation :
No Explanation available for this question

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

1.  1

2.  2

3.  3

4.  4

4

1

Explanation :
No Explanation available for this question

# An unbiased coin is tossed to get 2 points for turning up a head and one point forthe tail. If three unbiased coins are tossed simultaneously, then the probability ofgetting a total of odd number of points is:

1.  1/2

2.  1/4

3.  1/8

4.  3/8

4

1/2

Explanation :
No Explanation available for this question

# Suppose E and F are two events of a random experiment. If the probability of occurrence of E is 1/5 and the probability of occurrence of F given E is 1/10, then the probability of non-occurrence of at least one of the events E an

1.  1/18

2.  1/2

3.  49/50

4.  1/50

4

1/18

Explanation :
No Explanation available for this question

# Six faces of an unbiased die are numbered with 2, 3, 5, 7, 11 and 13. If two such dice are thrown, then the probability that the sum on the uppermost faces of the dice is an odd number is :

1.  5/18

2.  5/36

3.  13/18

4.  25/36

4

5/18

Explanation :
No Explanation available for this question

# A person who tosses an unbiased coin gains two points for turning up a head and loses one point for a tail. If three coins are tossed and the total score X is observed, then the range of x is :

1.  {0, 3, 6}

2.  {-3, 0, 3}

3.  {-3, 0, 3, 6}

4.  {-3, 3, 6}

4

{-3, 0, 3, 6}

Explanation :
No Explanation available for this question

# If X is a poisson variate with P(X = 0) = 0.8, then the variance of X is :

1.  loge20

2.  log1020

3.  loge5/4

4.  0

4

log<sub>e</sub>5/4

Explanation :
No Explanation available for this question

1.

2.

3.

4.

4