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Sagot :
The first five students to arrive at class are asked to take part in a study about the sleeping habits of young adults. Convenience is not random.
When a student council polls 100 students by randomly selecting samples of 25 freshmen, 25 sophomores, 25 juniors, and 25 seniors, what sampling approach is employed?
Randomized stratified sample: The populace is initially divided into factions. There are some people from each group in the overall sample. Each group's participants are picked at random. Example: A student council conducts a survey of 100 students by selecting 25 freshmen, 25 sophomores, 25 juniors, and 25 seniors as random samples.
Which type of sample is most suitable for students?
Finally, the sampling strategy that will best enable us to address our research topic is always the most effective also permitting the use of our findings by others (generalisability of results). We always have the option of using a non-random sampling method if we are unable to afford a random sampling method.
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