ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 425  428 of 471
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Question number: 425
» Statistical Methods » Bivariate Normal Distribution
Question
Let the random variable where and ∑= and . Then which of the following statement is correct regarding the value of?
Choices
Choice (4)  Response  

a.  is a matrix. 

b.  is a matrix. 

c.  is a matrix. 

d.  Question does not provide sufficient data or is vague 

Question number: 426
» Statistical Methods » Association and Contingency
Question
The value of , chi square statistic of the given data set is ________.
Choices
Choice (4)  Response  

a. 


b. 


c.  9.375 

d.  None of the above 

Question number: 427
» Statistical Methods » Charts, Diagrams and Histogram
Question
Which of the following statement is/are not correct?
Choices
Choice (4)  Response  

a.  A frequency polygon is a closed figure that is formed by joining the top midpoints of all the rectangles of a histogram using a free hand. 

b.  A frequency curve is a closed figure that is formed by joining the top midpoints of all the rectangles of a histogram using straight line. 

c.  Both a. and b. are correct 

d.  Question does not provide sufficient data or is vague 

Question number: 428
» Statistical Methods » Partial and Multiple Correlations
Question
What is the correlation between the following zscores?
X  Y 
0.1  0.2 
0.6  0.4 
0.3  1.0 
0.5  0.3 
0.8  0.7 
Choices
Choice (4)  Response  

a. 


b.  0.425 

c. 


d.  Question does not provide sufficient data or is vague 
