Once we have used character data to infer a tree, how can we be certain this tree best represents our data?
A) We cannot be certain.
B) We can test the statistical confidence that certain features of the tree are correct.
C) In most cases, we can ascertain whether our tree is correct with nearly 100% confidence.
D) There are so many correct trees for a given data set that all options are equally good.

Question

Quizplus · Accepted Answer

We can use statistical tests such as bootstrapping and maximum likelihood to estimate the confidence level of different features on our inferred tree. This will give us an idea of how well-supported certain branches or nodes are and allow us to evaluate the likelihood of the tree being the best representation of our data. While we cannot be completely certain, statistical confidence tests can help us judge the reliability of our final tree.

Once We Have Used Character Data to Infer a Tree