ProbabilityProbability Distributions (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 1  5 of 108
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 461 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 300.00 or
Question number: 1
» Probability » Probability Distributions » Exponential
Question
Suppose that has the exponential distribution with rate parameter . Then which of the following statement is/are correct regarding it?
Choices
Choice (4)  Response  

a.  has the geometric distributions on with success parameter . 

b.  has the geometric distributions on with success parameter . 

c.  Both a. and b. are correct 

d.  None of the above 

Question number: 2
» Probability » Probability Distributions » Negative Binomial
Question
Which of the following statement is/are correct?
Choices
Choice (4)  Response  

a.  Pascal distribution is a special case of negative binomial distribution on with parameter and , when k is a positive integer. 

b.  Pascal distribution is a special case of Normal distribution with parameter , when 

c.  The pdf of Pascal distribution is symmetric. 

d.  All of the above 

Question number: 3
» Probability » Probability Distributions » Uniform
Question
If , then what will be the standard deviation of ?
Choices
Choice (4)  Response  

a.  261.2 

b.  59.8 

c.  120.5 

d.  161.4 

Question number: 4
» Probability » Probability Distributions » Bernoulli
Question
Which of the following is skewness of a standardized Bernoulli distributed random variable which takes the value 1 with success probability of and the value 0 with failure probability of ?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 5
» Probability » Probability Distributions » Exponential
Question
The moment generating function of an exponential random variable X with parameter λ (for t < 1/ λ) is:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 
