ProbabilityProbability Distributions (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 31  34 of 109
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Question number: 31
» Probability » Probability Distributions » Laplace
Question
The characteristic function of standard Laplace distribution is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 32
» Probability » Probability Distributions » Negative Binomial
Question
Suppose that and are independent random variables for an experiment, and that Negative Binomial distribution and Negative Binomial distribution. Then
Choices
Choice (4)  Response  

a.  Binomial distribution 

b.  Negative Binomial distribution 

c.  Negative Binomial distribution 

d.  None of the above 

Question number: 33
» Probability » Probability Distributions » Cauchy
Question
Which of the following statement is correct regarding the pdf of standard Cauchy distribution?
Choices
Choice (4)  Response  

a.  It increases and then decreases, with mean . 

b.  It is concave upward, then downward, and then upward again, with inflection points at. 

c.  It is symmetric about its mean. 

d.  None of the above 

Question number: 34
» Probability » Probability Distributions » Normal
Question
If are i. i. d with standard normal distributions, the value of so that the random variable has a tdistribution is________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 
