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Historically, frontiers rather than boundaries separated many states.
Population proportion
The ratio of members in a population that have a particular attribute or characteristic, represented as a fraction or percentage of the total.
Standard error of the mean
The standard deviation of the sampling distribution of the mean, indicating the variability of sample means around the population mean.
Average hourly income
The mean amount of money earned by an individual or group per hour of work.
Standard deviation
A measure of the dispersion or variability of a set of numerical data, indicating how much the individual data points deviate from the mean (average) of the data set.
Q3: According to the Von Thünen model, later
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Q77: According to Figure 12.7.1, in which of