The Random Variable X Is the Number of Occurrences of an Event

question 40

Multiple Choice

The random variable x is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the probability of an occurrence is the same in any two time periods of an equal length. It is known that the mean number of occurrences in ten minutes is 5.3. The appropriate probability distribution for the random variable is

• A) discrete.
• B) continuous.
• C) either discrete or continuous depending on how the interval is defined.
• D) binomial.

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Definitions:

Cutting Device

An instrument or tool designed for cutting materials or objects, differing in form based on its specific use.

Buccal Medication

Medication administered between the gums and the cheek, allowing for absorption through the oral mucosa directly into the bloodstream.

Cheek Membranes

The mucous membranes lining the inside of the mouth on either side, known for their role in protecting oral tissues and facilitating sensation and absorption.

Swallowing

The process of making food or liquid pass from the mouth through the esophagus to the stomach.