ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 290  294 of 471
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Question number: 290
» Probability » Conditional Probability
Question
Consider the college applicant who has determined that he has 0.80 probability of acceptance and that only 60 % of the accepted students will receive dormitory housing. Of the accepted students who receive dormitory housing, 80 % will have at least one roommate. What is the probability of being accepted and receiving dormitory housing and having no roommates?
Choices
Choice (4)  Response  

a.  0.088 

b.  0.096 

c.  0.085 

d.  0.074 

Question number: 291
» Probability » Probability Distributions » Hypergeometric
Question
An urn contain 20 balls out of which 8 are black and 12 are white. 5 balls are selected without replacement, then what is the probability that exactly 2 balls are white balls?
Choices
Choice (4)  Response  

a.  0.542 

b.  0.238 

c.  0.636 

d.  0.827 

Question number: 292
» Probability » Probability Distributions » Geometric
Question
If geometric distribution, then will have ________.
Choices
Choice (4)  Response  

a.  Uncountable and possibly infinite number of possible values. 

b.  Countable but possibly infinite number of possible values. 

c.  Countable possibly finite number of possible values. 

d.  Uncountable number of possible values. 

Question number: 293
» Probability » Probability Distributions » Cauchy
Question
The Student distribution with one degree of freedom has PDF________.
Choices
Choice (4)  Response  

a. 


b.  Standard Cauchy distribution 

c.  Question does not provide sufficient data or is vague 

d.  None of the above 

Question number: 294
» Probability » Conditional Probability
Question
Suppose that five good bulbs and two defective ones have been mixed up. To find the defective bulbs, we test them onebyone, at random and without replacement. What is the probability that we are lucky and find both of the defective fuses in the first two tests?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  None of the above 
