Examlex
The following table shows the ancestral and derived traits of five species (A-E). Based on the table, and following conventions presented in the textbook, construct a phylogenetic tree that represents the evolutionary relationships of this group. In this table, the ancestral state of each trait is indicated by 0 and the derived state is indicated by 1.
Null Hypothesis
A statistical hypothesis that assumes no significant difference or effect exists among the tested groups or variables.
Chi-Square Test
A statistical test used to determine if there is a significant difference between observed frequencies and expected frequencies in categorized datasets.
Independence
A situation in statistics where two events are not influenced by each other, and the occurrence of one does not affect the probability of occurrence of the other.
Chi-Square Statistic
A statistical measure used to evaluate the differences between observed and expected frequencies in categorical variables.
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