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

question 15

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 expected value of the random variable x is

• A) 2.
• B) 5.3.
• C) 10.
• D) 2.30.

---

Definitions:

Cold and Pressure Spots

Sensory receptors in the skin that detect changes in temperature and pressure, contributing to the senses of touch and thermal perception.

Sense

A faculty by which the body perceives an external stimulus; one of the faculties of sight, smell, hearing, taste, and touch.

Ankle Sprain

An injury to the ligaments in the ankle, caused by the ligaments being stretched beyond their normal capacity.

Psychologically Minimized

The process in which an individual's feelings or emotions are downplayed or regarded as less significant.