NDA (National Defence Academy) Mathematics: Questions 354  358 of 384
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Question number: 354
» Statistics and Probability » Correlation and Regression
Appeared in Year: 2012
Question
Consider the following statements:
 Two indepents variable are always uncorrelated.
 The coefficient of correlation between two variablesis positive whendecreases thendecreases.
Which of the above statements is/are correct?
Choices
Choice (4)  Response  

a.  1 only 

b.  2 only 

c.  1 and 2 

d.  Neither 1 nor 2 

Question number: 355
» Analytical Geometry of Two and Three Dimensions » Eccentricity and Axis of a Conic
Question
What is the eccentricity of the conic
Choices
Choice (4)  Response  

a.  0 

b. 


c. 


d. 


Question number: 356
» Trigonometry » Applications » Properties of Triangles
Question
If is a cyclic quadrilateral, then what is equal to?
Choices
Choice (4)  Response  

a.  2sin A 

b.  2sin A + 3sin B 

c. 


d.  4sin B 

Question number: 357
» Statistics and Probability » Union and Intersection of Events
Appeared in Year: 2012
Question
In a city, three daily newspaper are published, read o not read any of the threenewspaper.
What is the percentage of persons who read onlybut neithernor? (Take
Choices
Choice (4)  Response  

a.  4% 

b.  1% 

c.  3% 

d.  All of the above 

Question number: 358
» Analytical Geometry of Two and Three Dimensions » Angle between Two Lines and Two Planes
Question
If a line makes the angle with the axes, then what is the value of equal to?
Choices
Choice (4)  Response  

a.  7 

b.  12 

c.  5 

d.  0 
