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Earn +20 ptsQ: What are scientifically valid sample?
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Is a biased sample always valid?
a biased sample is valid determin
Why is it important to have a representative sample when doing surveys?
Because without representative sample, your results will not be valid.
Which sample size out of a population of 1000 is most likely to lead to a valid conclusion?
Providing of course that a sample is representative of the population from which it is drawn, the bigger it is the more likely it will be to lead to a valid conclusion. Therefore, the best sample size when there are no restrictions, as in this case, would be one of 1000.
What is the importance of a representative sample?
Well, if your sample does not represent the larger sample, you'll certainly not get a valid result ... For example, if you're studying pregnancy and your sample includes men - The whole idea of "representative' sample is fuzzy and often gives interesting errors.
Which sample size out of a population of 1,000 is most likely to lead to a valid conclusion50150200100?
China?
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