Is there variance among different samples?

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tcope22

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If you take different samples randomly from the same population, will there be variance among the different samples, why or why not? :confused:
 
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tcope22 said:
If you take different samples randomly from the same population, will there be variance among the different samples, why or why not?
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Refresh your memory about the meaning of variance in populations and samples and how each is calculated, and then experiment. For example, at the link, you could sample the population of five dogs by picking three at random. Calculate the variance in shoulder height. Next, pick a different trio, and calculate the variance for that sample. Try picking one sample with two dogs and one sample with four dogs. Compare those variances with the others. Then, answer why or why not, in your own words. Questions? :cool:
 
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