A very enjoyable evening of wine tasting.
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Universe is the total population from which the sample is drawn. For example, if you are sampling 500 houses from a city that has 10,000 houses, the universe here is the 10,000 houses.
random sample is a big sample and convenience sample is small sample
A subset of sample space is taking a sample from that sample space.
With a good sample, the sample mean gets closer to the population mean.
a sample that is conveniant. Such as voting. the sample is conveniant because it elects leaders