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The distinction between random and non-random sampling lies in how samples are selected from a population. Random sampling relies on chance, giving every individual an equal opportunity to be chosen, which minimizes selection bias and enhances representativeness. In contrast, non-random sampling does not ensure each member has an equal chance of selection and often involves judgment or convenience, leading to a higher risk of bias. Random sampling methods like simple random sampling or stratified sampling are thus preferred for studies requiring generalizable results, while non-random sampling is sometimes used for exploratory research where representativeness is less critical. The other options are incorrect because: • Option 1 confuses judgment with randomness; judgment sampling is a non-random method. • Option 2 reverses definitions, as random sampling, not non-random, ensures equal chance. • Option 3 is inaccurate; both sampling types are used in qualitative and quantitative research, depending on goals. • Option 5 is misleading, as time required varies by method specifics, not by randomness alone.
Consider the following statements regarding Delimitation Commission:
1.Delimitation Commissions have been set up three times — 1952, 1962 and 1...
With reference to ‘Bharat 6G Alliance (B6GA)’, consider the following statements:
1.It consists of public and private companies, research ins...
Consider the following statements regarding the Central Information Commission:
1. It is constituted under the Right to Information Act, 2005
G Marimuthu passed away recently. Who was he?
Which organization released the first State of the World’s Animal Health report in May 2025?
India has signed a MoU with which country to share the 'India Stack'?
Consider the following statements about One Nation One Registration platform:
1. National Medical Commission (NMC) launch “one nation, one re...
As per the RTE act 2009, what is the decided ratio of student & teacher?
India has recently signed an agreement with which country to develop new generation military equipment?
Which app recently launched by NSE provides real-time market updates and supports eleven regional languages?