ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 343  346 of 461
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: 343
» Probability » Probability Distributions » Beta
Question
If has the distribution with degrees of freedom in the numerator and degrees of freedom in the denominator then, will follow ________ distribution.
Choices
Choice (4)  Response  

a. 


b.  with degrees of freedom. 

c. 


d.  Question does not provide sufficient data or is vague 

Question number: 344
» Probability » Probability Distributions » Distributions of Functions of Random Variables
Question
Suppose and are independent exponential random variables with parameter. If. Then the marginal distribution of or will follow ________.
Choices
Choice (4)  Response  

a.  Exponential distribution with parameter 

b.  Poisson distribution with parameter 

c.  Exponential distribution with parameter 

d.  None of the above 

Question number: 345
» Probability » Probability Distributions » Lognormal
Question
Suppose that the income of a randomly chosen person in a certain population (in $1000 units) has the lognormal distribution with parameters μ=2 and σ=1. Find the value of .
Choices
Choice (4)  Response  

a.  12.1825 

b.  6.1255 

c.  8.5063 

d.  All of the above 

Question number: 346
» Probability » Probability Distributions » Joint and Marginal Distributions
Question
Suppose that and are independent continuous random variables with the following density functions:
for and
What is the value of ?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

