ProbabilityProbability Distributions (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 1  5 of 108
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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 
