A Researcher Questioned 45 Randomly-Selected Members of the Freshman Class

question 18

Multiple Choice

A researcher questioned 45 randomly-selected members of the freshman class about their experiences drinking alcohol and used these responses to estimate the drinking behavior of the entire freshman class of 1500. In this example, the 45 interviewees were the __________ and the ___________ was the population.

• A) sample, student body
• B) parameters, freshman class
• C) statistics, parameters
• D) sample, freshman class

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Definitions:

Transition States

High-energy states through which reactants must pass for a chemical reaction to occur, representing a maximum in energy on the reaction path between reactants and products.

Endothermic

A reaction or process that absorbs heat from its surroundings, resulting in a temperature decrease in the external environment.

Frequency Factor

A term in chemical kinetics that represents the frequency of collisions that lead to a reaction, influenced by the orientation and energy of the reactants.

Arrhenius Equation

An equation that gives the rate of a reaction as a function of temperature, providing a basis for understanding temperature effects on rate.