What is a sample? What are the two cross−$-$sectional approaches used, and how many people would you need to sample in a population of 500,000 to arrive at a 5$\mathrm{<span\; style="font-size:\; 14px;\; font-family:\; "Helvetica\; Neue",\; Helvetica,\; Arial,\; sans-serif;"> percent\; margin\; of\; error?</span>}$

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In statistics a sample is a smaller group or subset chosen from a larger population or set The aim of selecting a sample is to obtain information abou... View the full answer