There Were 11 Earthquakes M>6

question 108

Multiple Choice

There were 11 earthquakes M>6.9 on the San Andreas Fault between 1812 and 1994.On average, how many years pass between earthquakes of this size, somewhere along the fault?

• A)16.5 years
• B)1.65 years
• C)165 years
• D)1650 years

---

Definitions:

Case History

A detailed compilation of information about an individual or group, including background, development, and events, often used in medical, psychological, or sociological contexts.

Naturalistic Observation

A research method wherein subjects are observed in their natural environment without any manipulation by the observer.

Double-blind Study

A scientific experiment where both the participants and the researchers do not know who receives the treatment or the placebo, eliminating bias.

Survey Research

A research method involving the collection of information from a sample of individuals through their responses to questions.