An Investment Earned the Following Returns for the Years 2003

question 151

Multiple Choice

An investment earned the following returns for the years 2003 through 2006:-20%, 50%, 30%, and 10%. What is the variance of returns for this investment?

• A) 0.0892
• B) 0.1121
• C) 0.1541
• D) 0.1747
• E) 0.2987

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Definitions:

Brain-to-Body-Mass Ratio

A measure comparing the weight of an animal's brain to its body weight, often used to make inferences about the potential for intelligence and complex behaviors.

Evolutionary Processes

The natural mechanisms through which species undergo change over time, involving variations in traits that are heritable and can influence reproductive success.

Female Preference

The tendency or inclination for females within a species to select certain traits or behaviors in mates.

Predators

Organisms that hunt, kill, and consume other organisms for food, playing an essential role in maintaining the balance of ecosystems.