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Sampling is vital in data analysis because it allows analysts to work with a manageable subset of data that still reflects the characteristics of the larger population. By selecting a representative sample, analysts can draw insights without processing the entire dataset, reducing computational complexity and resource usage. In large datasets, analyzing every data point can be impractical or even impossible due to storage or processing limitations. Sampling enables efficient data analysis by focusing on a smaller, statistically representative portion, which speeds up the analysis process and makes it more cost-effective. Option A is incorrect because sampling decreases the data volume rather than increasing it. Option B is incorrect as sampling involves selecting a subset, not including all data points. Option D is incorrect since sampling does not replace preprocessing steps like data cleaning. Option E is incorrect because while sampling can reduce bias, it does not guarantee a completely unbiased dataset.
Statements:
Some Gold are Silver
All Silver are Bronze
Some Bronze are Copper
Conclusions:
I. Some Bronze ...
Statements:
Only pens are pencil
Some pens are copy
Only copies are book
Conclusion:
I. Some pencils...
Statements:
All phones are mobiles.
Some sims are phones.
No card is a sim.
Conclusions:
I. Some mobiles are ...
Statements:
Only a few Adidas are Nike
All Nike are Puma
No Nike is a Reebok
Conclusions:
I. All Puma being ...
In the question below there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be true ev...
Statement:
Some rivers are hills.
All hills are mountains.
No mountain is a tree.
Some trees are branches.
Conclus...
Statements-:
Only a few Beg is Box.
Some box is pencil
No pencil is Bottle
Conclusions-:
I. All Bottles can b...
Statements:
Some Branches are not Outlets.
Only a few Outlets are Stores.
All Stores are Camps.
Only a few Camps are Godown....
Statements:
No construction is building.
No building is foundation.
Every foundation is apartment.
Conclusions:
I. So...