Use This Figure to Answer the Following Questions

question 25

Multiple Choice

Use this figure to answer the following questions.

-Which extinct species should be the best candidate to serve as the outgroup for the clade whose common ancestor occurs at position 2 in the above figure?

• A)A
• B)B
• C)C
• D)D

---

Definitions:

Sample Proportion

The fraction or percentage of items in a sample that are part of a particular category or characteristic of interest.

Binomial Distribution

A statistical function that delineates the chances of a variable assuming either of two mutually exclusive values, based on certain parameters.

Normal Distribution

A statistical distribution where data is symmetrically distributed around the mean, with most observations clustering around the center and fewer observations the further away they are from the mean.

Observational Studies

A study where the researcher observes and records behavior without manipulating the environment or conditions.