ProbabilityProbability Distributions (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 5  9 of 109
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Question number: 5
» 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: 6
» 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 

Question number: 7
» Probability » Probability Distributions » Normal
Question
Suppose marks of students in a test are normally distributed. If the test has a mean of 100 and a standard deviation of 10, what is the probability that a student who gives the test will score between 90 and 110?
Choices
Choice (4)  Response  

a.  0.84 

b.  0.68 

c.  0.16 

d.  All of the above 

Question number: 8
» Probability » Probability Distributions » Rectangular
Question
Which of the following statement is/are not correct regarding a random variable?
Choices
Choice (4)  Response  

a.  A random variable can be uniformly distributed in 

b.  A random variable can be uniformly distributed in (. 

c.  Both a. and b. are correct 

d.  None of the above 

Question number: 9
» Probability » Probability Distributions » Binomial
Question
Let binomial distribution . Let , the moment generating function of is________?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  None of the above 
