The Time Between Calls to an Emergency 911-Call Center Is

question 8

Multiple Choice

The time between calls to an emergency 911-call center is exponentially distributed with a mean time between calls of 645 seconds. Based on this information, what is the probability that the time between the next two calls is between 200 and 400 seconds?

• A) Approximately 0.47
• B) About 0.199
• C) About 0.747
• D) About 0.801

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Definitions:

NEC

Not Elsewhere Classified (NEC) is a term used in coding and classification systems when a specific code for a condition or detail does not exist.

NOS

Not Otherwise Specified, a term used in medical coding and diagnosis when a more specific diagnosis cannot be made.

Unspecified

In medical contexts, "unspecified" often refers to conditions that are not clearly defined or categorized due to lack of detailed information.

Seventh Characters

In coding systems such as ICD-10, the seventh character is used to provide additional information about the condition or diagnosis.