Approximately How Many People Have Been Infected with HIV Worldwide

question 22

Multiple Choice

Approximately how many people have been infected with HIV worldwide since its discovery?

• A) 25 million
• B) 45 million
• C) 75 million
• D) 90 million

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Definitions:

OptQuest

A proprietary optimization software that uses various algorithms to find the best solutions to complex decision-making problems.

Permutation

An arrangement of items in a particular order, often used in mathematics to describe all the possible orders a set of objects can be arranged.

Decision Variable Range

The set of possible values that a decision variable can take in mathematical modeling and optimization problems.

Decision Variables

Variables in a mathematical model that decision-makers control in order to achieve the best solution to an optimization problem.