A Company Wants to Select No More Than 2 Projects

question 30

Multiple Choice

A company wants to select no more than 2 projects from a set of 4 possible projects. Which of the following constraints ensures that no more than 2 will be selected?

• A) X₁ + X₂ + X₃ + X₄ = 2
• B) X₁ + X₂ + X₃ + X₄ ≤ 2
• C) X₁ + X₂ + X₃ + X₄ ≥ 2
• D) X₁ + X₂ + X₃ + X₄ ≥ 0

---

Definitions:

Independent Variable

The factor in a study that is deliberately changed by the investigator to see how it influences the outcome variable.

Statistically Significant Interaction

An interaction between variables that leads to a difference in outcomes which is unlikely to be due to chance alone, according to statistical analysis.

Means

Statistical averages that are calculated by adding up all the numbers in a set and then dividing by the count of those numbers.

Authorship

The credit given to individuals for their contribution to the creation of a work, such as a book, article, or study.