CA Foundation Maths, Statictics, Logic, and Reasoning: Questions 21  26 of 154
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Question number: 21
» Theoretical Distributions Binomial
Question
the most important continuous probability distribution is known as
Choices
Choice (4)  Response  

a.  Normal distribution. 

b.  Binomial distribution 

c.  Sampling distribution 

d.  Chisquare distribution. 

Question number: 22
Question
Product moment correlation coefficient may be defined as the ratio of
Choices
Choice (4)  Response  

a.  The product of standard deviations of the two variables to the covariance between them 

b.  The covariance between the variables to the product of their standard deviations 

c.  The covariance between the variables to the product of the variances of them 

d.  Question does not provide sufficient data or is vague 

Question number: 23
» Statistical Description of Data » Textual Representation of Data
Question
Age of a person is
Choices
Choice (4)  Response  

a.  A continuous variable 

b.  A discrete variable 

c.  A variable 

d.  An attribute 

Question number: 24
Question
Product moment correlation coefficient is considered for
Choices
Choice (4)  Response  

a.  Finding the amount of correlation 

b.  Finding the nature of correlation 

c.  Both a. and b. are correct 

d.  Question does not provide sufficient data or is vague 

Question number: 25
Question
What is the quickest method to find correlation between two variables?
Choices
Choice (4)  Response  

a.  Method of product moment correlation 

b.  Scatter diagram 

c.  Method of rank correlation 

d.  Method of concurrent deviation 

Question number: 26
Question
The method applied for deriving the regression equations is known asChoices
Choice (4)  Response  

a.  Concurrent deviation 

b.  Product moment 

c.  Least squares 

d.  Normal equation 
