The Boundaries of Biogeographic Regions Are Usually Quite Arbitrary, Usually

question 93

True/False

The boundaries of biogeographic regions are usually quite arbitrary, usually following political boundaries rather than being based on biophysical criteria.

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Definitions:

Mean Number

The average value obtained by dividing the sum of all values in a dataset by the number of values.

Significance Level

A threshold in hypothesis testing, typically denoted by alpha, indicating the probability of rejecting the null hypothesis when it is actually true.

Known Variance

In statistics, refers to a situation where the variance of a population is a known quantity, facilitating certain types of inference.

P(T<=t) Two-Tail

The probability that the test statistic T will fall in either tail of its distribution, assuming the null hypothesis is true, used in two-tailed tests.