In the Trench Pictured to the Right, the Information Most

question 115

Multiple Choice

In the trench pictured to the right, the information most important to a geologist studying a prehistoric earthquake is:

• A) there are layers of sediment and soil
• B) the sediment is light colored
• C) there is a vertical crack in the trench wall
• D) the layers have been offset a measurable distance across a crack

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Definitions:

Negatively Skewed

Describes a distribution of data where the tail is longer on the left side of the distribution's peak, indicating most values are high and few are low.

Tail

The far end portions of a distribution curve where the likelihood of values occurring becomes smaller; in skewed distributions, one tail may be longer than the other.

Negative Skew

A distribution that is skewed to the left, indicating that the tail on the left side is longer or fatter than the right side and the mean is typically less than the median.

Distribution

Refers to the way values in a data set are spread or dispersed, indicating the pattern of variations within the data.