The Probability of Earth Being Hit by a 10 Km

question 112

Multiple Choice

The probability of Earth being hit by a 10 km asteroid in the next few hundred years is

• A) impossible to predict
• B) very high
• C) zero
• D) small but not zero

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Definitions:

Ratio

A mathematical expression that represents the relationship between two numbers, showing how many times one value contains or is contained within the other.

Interval Reinforcement

A conditioning schedule where a response is rewarded after a variable amount of time has passed, in behavioral psychology.

Schedule of Reinforcement

A strategy in behavioral psychology determining when and how often a response will be reinforced.

Reinforcement

A process in behavioral psychology that increases the likelihood of a response by adding or removing a stimulus after the behavior.