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In reality, a statistician never really has ALL the data. The data is instead taken from a sample of the whole population. If this sample is representative of the entire population, then any statistics based on the sample should be good estimates of the whole but probably not a perfect match. Of course the more data you get from the whole population the better the estimate, but it will always be an estimate unless you census the enitire population.
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Earn +20 ptsQ: Why is it only possible to estimate the mean median and quartiles?
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Continue Learning about Statistics
Can ypu find the mean and median with data from a histogram?
You can estimate the median and the mean.
Can you find the mean or median of a set of data from a histogram?
You can estimate them both.
Can you find the mean median of a set of data from a histogram?
You can estimate them both.
How do mean deviation from median?
The mean deviation from the median is equal to the mean minus the median.
Mean median and?
Mean, Median and Mode. They are three kinds of averages.
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