A Researcher Selects a Sample of 80 People and Records

question 43

Multiple Choice

A researcher selects a sample of 80 people and records the frequency of participants choosing a low,moderate,or high calorie dessert in a buffet.What are the degrees of freedom for this chi-square goodness-of-fit test?

• A) 2
• B) 3
• C) 79
• D) 80

---

Definitions:

Nuclear Reactor

A device used to initiate and control a sustained nuclear chain reaction, primarily for the generation of electricity.

Net Useful Energy

The amount of energy available for use after subtracting the energy lost in conversion, transmission, and distribution processes.

Fissionable Fraction

The portion of a nuclear fuel that can undergo fission, the process by which atomic nuclei split to release energy.

Uranium-235

A naturally occurring isotope of uranium with the ability to undergo fission, making it a critical component for nuclear reactors and weapons.