A researcher randomly picks the first item or subject from a population,N then selects each j^th subject where j is the ratio of the population size,N to the desired sample size,n.In this case,the researcher is using: A)random sampling. B)systematic random sampling. C)population sampling. D)parameter sampling.

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The description matches the process of systematic random sampling, where the first subject is randomly selected and then every jth subject is chosen from the population. This method ensures that every member of the population has an equal chance of being selected and is therefore a reliable way to obtain a representative sample. Random sampling (A) refers to selecting subjects randomly from the population without a set pattern, population sampling (C) is a broad term that encompasses various sampling methods, and parameter sampling (D) refers to estimating parameters of a population through statistical analysis.

A Researcher Randomly Picks the First Item or Subject from a Population,N