Exhibit 5-8 the Random Variable X Is the Number of Occurrences of Occurrences

question 80

Multiple Choice

Exhibit 5-8
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.
-Refer to Exhibit 5-8. The expected value of the random variable x is

• A)2
• B)5.3
• C)10
• D)2.30

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Definitions:

Teratogen

Any agent that can cause developmental malformations (birth defects) in a fetus when exposure occurs during pregnancy.

Environmental Toxins

Harmful pollutants or chemicals present in the environment that can cause adverse health effects on humans and wildlife.

Alcohol

A psychoactive substance that is found in beverages such as beer, wine, and spirits, and can alter mood, cognition, and behavior.

Fetal Stage

The final phase of prenatal development, starting from the ninth week of pregnancy until birth, during which significant growth and maturation of organs occur.