Pluto Was Long Thought to Be a Planet

question 29

Multiple Choice

Pluto was long thought to be a planet. New discoveries in the Kuiper Belt have changed its official designation to ________.

• A) asteroid
• B) meteoroid
• C) planetesimal
• D) nebula
• E) plutoid

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Definitions:

Expected Winnings

The average amount one can expect to win or lose from a gamble or game, calculated by multiplying each possible outcome by its probability and summing the results.

Hyperbolic Discounting

A cognitive bias where people tend to prefer smaller, immediate rewards over larger, delayed rewards, affecting decision-making.

Exponential Discounting

A process or model that describes how future benefits or costs are valued less as they are further in the future.

Interest Rate

The fraction of the borrowed amount a borrower needs to pay as interest to the lender.