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The core distinction between random and non-random sampling lies in the selection process. In random sampling, each member of the population has an equal chance of being chosen, which minimizes selection bias and improves the likelihood that the sample accurately reflects the population. Non-random sampling, on the other hand, often involves selecting individuals based on specific criteria, making it subjective and more prone to bias. This can affect the sample’s representativeness, although non-random sampling is sometimes used in cases where convenience or specific characteristics are necessary. Option A is incorrect because sample size is determined by study requirements, not the sampling method. Option B is incorrect as non-random sampling is applicable to both small and large datasets. Option D is incorrect because random sampling is typically more reliable in reducing selection bias. Option E is incorrect as random sampling is specifically designed to produce representative samples.
One who is selflessly concerned with welfare of others
Price stability exist when average prices are constant over time, or when they are rising at a very low and predictable rate.
...Before sleeping, (A)/you should make sure (B)/that you have locked all doors, (C)/preventing theft (D).
My brother Mohit (a) / is much smarter (b) / then me. (c) / No error (d)
No effort has been made at all (a) / to cash on (b) / the refurbished image of Indian tennis (c) / No Error (d)
Directions: In each of the questions, a sentence has been divided into four parts, one of which may contain an error. Identify that fragment and mark ...
The edited image/ shows Trump's head/ superimposed into a/ picture of Superman.
Vinay had been reading news paper (A)/ since (B)/ two days. (C)/ No error (D)
Parts of the following sentence are given as options. Identify the segment that contains a grammatical error.
Bhanu finished to read such a thi...