ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 308  310 of 461
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Question number: 308
» Probability » Probability Distributions » Gamma
Question
Which of the following statements is/are correct regarding Gamma distribution with parameters?
Choices
Choice (4)  Response  

a.  If represents identically distributed, independent gamma random variables with parameters and , then if , 

b.  If represents identically distributed, independent gamma random variables with parameters and , then also have a gamma distribution with parameters and . 

c.  If the gamma density function is reduced to the exponential density function. 

d.  All a. , b. and c. are correct 

Question number: 309
» Probability » Probability Distributions » Beta
Question
For a standard Beta distribution having pdf , with parameter , which of the following statements is/are correct?
Choices
Choice (4)  Response  

a.  If is increasing with 

b.  If is decreasing with mode at 

c.  If is increasing with mode at 

d.  All a. , b. and c. are correct 

Question number: 310
» Probability » Probability Distributions » Conditional Distributions
Question
Suppose that the joint density of and is
and zero otherwise. Which of the following is equal to
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

