Which of the Following Statements About Lichenometry Is NOT True

question 48

Multiple Choice

Which of the following statements about lichenometry is NOT true?

• A) Lichen dating is calibrated for an area by observing lichens on surfaces of known ages such as old tombstones.
• B) Lichen dating is accomplished by counting the number of lichen colonies growing on the surface of a rock.
• C) Lichenometry is useful for dating young glacial deposits, rockfalls, and mudflows.
• D) Lichen dating is useful only for surfaces younger than about 9000 years.

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Definitions:

Valid Probability

A numerical value representing the likelihood of an event, where the probability is between 0 and 1, inclusive.

Poisson Random Variable

Represents a statistical measure that models the number of times an event happens in a fixed interval of time or space when these events occur with a known constant mean rate independently of the time since the last event.

Standard Deviation

A measure of the amount of variation or dispersion in a set of values, calculated as the square root of variance.

Discrete Random Variable

A type of random variable that can take on a countable number of distinct values, often used to model scenarios where outcomes are countable.