Question
A researcher collects multiple random samples from a
population and calculates the sample means. He notices that the means vary across different samples. What is the primary reason for this variation?Solution
Explanation:- Sampling variation refers to the natural fluctuation in sample statistics (e.g., sample mean) when different random samples are drawn from the same population. Even if the sampling method is unbiased, each sample is slightly different , leading to variations in estimates. This happens because random samples may include different observations from the population, causing sample means to differ. The larger the sample size, the lower the sampling variation, as the sample better represents the population. Â
Statement:
Only a few Y are Z
No Y is X
No Z is V
Conclusion:
I. Some Y are not Z
II. Some X are V
...Three statements are given followed by two conclusions numbered I & II. Assuming the statements to be true, even if they seem to be at variance with co...
Statements:
No subject is predicate.
All predicate is vowel.
Only a few vowel is preposition.
Conclusions:
I. No vowe...
Statements:
Only Riot are Racism.
Some Riot are Culture.
All Culture are Tradition.
Conclusion:
I. All Riot are Tradi...
Statements: All males are females.
All females are men.
No man is a woman.
All women are Girl...
Statements:Â
No watch is mobile
Some phones are shoes
All shoes are watch
Conclusion:
I. Some phones are not mob...
In the question below some statements are given followed by three conclusions I, II and III. You have to take the given statements to be true even if ...
Statement: Â
Some A are not B
 All A are C                          Â
Conclusion:Â Â Â Â Â Â Â Â <...
Statements:
Only a few A are B.
No B is C.
All C are Z.
Conclusions:
I. Some A can be B.
II. Some C can...
Which of the following statement is/are correct regarding T?
