CA Foundation Maths, Statictics, Logic, and Reasoning: Questions 70  75 of 154
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Question number: 70
» Statistical Description of Data » Frequency Distribution
Question
The LCB (Lower Class Boundary) is
Choices
Choice (4)  Response  

a.  An upper limit to LCL (Lower Class Limit) 

b.  A lower limit to LCL 

c.  Question does not provide sufficient data or is vague 

d.  None of the above 

Question number: 71
Question
When we are not concerned with the magnitude of the two variables under discussion, we consider
Choices
Choice (4)  Response  

a.  Product moment correlation coefficient 

b.  Rank correlation coefficient 

c.  Coefficient of concurrent deviation 

d.  All of the above 

Question number: 72
» Measures of Central Tendency
Question
If all the observations are increased by 10, then
Choices
Choice (4)  Response  

a.  Quartile deviation would be increased by 10 

b.  SD would be increased by 10 

c.  remain unchanged. 

d.  Mean deviation would be increased by 10 

Question number: 73
» Statistical Description of Data » Textual Representation of Data
Question
Which method of data collection covers the widest area?
Choices
Choice (4)  Response  

a.  Mailed questionnaire method 

b.  Telephone interview method 

c.  Direct interview method 

d.  Question does not provide sufficient data or is vague 

Question number: 74
Question
What is spurious correlation?
Choices
Choice (4)  Response  

a.  It is a negative correlation. 

b.  It is a bad relation between two variables. 

c.  It is very low correlation between two variables. 

d.  It is the correlation between two variables having no causal relation. 

Question number: 75
» Theoretical Distributions Binomial
Question
Parameter is a characteristic of
Choices
Choice (4)  Response  

a.  Probability distribution. 

b.  Sample 

c.  Population 

d.  All of the above 
