In Science, a Theory Can Be Defined as

question 95

Multiple Choice

In science, a theory can be defined as

• A) an educated guess.
• B) an explanation that explains and integrates numerous findings and observations into a coherent whole.
• C) a personal understanding of natural laws.
• D) a testable prediction.

Recognize the role of natural selection and genetic drift in evolutionary change.

Grasp the concept of allele frequencies and how they represent genetic variation within a population.

Understand how environmental factors influence evolutionary strategies and selection.

Analyze the implications of major historical or catastrophic events on species survival and evolution.

---

Definitions:

Single-Index Structure

A model used in finance to describe the returns of a portfolio using a linear relationship between the return of the portfolio and the return of a market index.

Expected Returns

The anticipated average return on an investment, taking into account the probability of different outcomes, including both gains and losses.

Variances of Returns

The measure of the spread between numbers in a data set, representing the average of the squared differences from the mean, specifically used in the context of the returns on investments.

Single-Index Model

A simplified model that explains a security's return with its sensitivity to a single market index.