CA Foundation Maths, Statictics, Logic, and Reasoning: Questions 117  123 of 154
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Question number: 117
Question
The difference between the observed value and the estimated value in regression analysis is known as
Choices
Choice (4)  Response  

a.  Error 

b.  Error or Residue 

c.  Residue 

d.  Deviation 

Question number: 118
Question
Regression analysis is concerned with
Choices
Choice (4)  Response  

a.  Establishing a mathematical relationship between two variables 

b.  Predicting the value of the dependent variable for a given value of the independent Variable 

c.  Measuring the extent of association between two variables 

d.  Both a. and b. are correct 

Question number: 119
Question
For finding correlation between two attributes, we consider
Choices
Choice (4)  Response  

a.  Scatter diagram 

b.  Pearson’s correlation coefficient 

c.  Spearman’s rank correlation coefficient 

d.  Coefficient of concurrent deviations. 

Question number: 120
Question
The two lines of regression become identical whenChoices
Choice (4)  Response  

a.  r = –1 

b.  r = 0 

c.  r = 1 or 1 

d.  r = 1 

Question number: 121
Question
If the coefficient of correlation between two variables is 0.7 then the percentage of variation unaccounted for is
Choices
Choice (4)  Response  

a.  51% 

b.  49% 

c.  70% 

d.  30% 

Question number: 122
» Theoretical Distributions Binomial
Question
An important discrete probability distribution is
Choices
Choice (4)  Response  

a.  Poisson distribution. 

b.  Normal distribution. 

c.  Cauchy distribution. 

d.  Log normal distribution. 

Question number: 123
» Statistical Description of Data » Tabular Representation of Data
Question
The entire upper part of a table is known as
Choices
Choice (4)  Response  

a.  Caption 

b.  Body 

c.  Stub 

d.  Box head 
