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The competitive exclusion principle assumes that the competing species have exactly the same resource requirements.
Population variance
A measure of the dispersion of all data points within a population, squared from the mean of the population.
Confidence interval
A gamut of numbers, produced from sample statistics, believed to enfold the covert value of a population parameter.
Sample standard deviation
A statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance.
True average age
The actual mean age of all individuals in a specified group or population.
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