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

question 38

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 probability that there are less than 3 occurrences is

• A) .0659.
• B) .0948.
• C) .1016.
• D) .1239.

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Definitions:

Russia

The largest country in the world by area, spanning Eastern Europe and northern Asia, known for its rich history, cultural heritage, and as a major global political power.

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War Effort

Collective actions and endeavors undertaken by a country and its citizens to support its military operations during a time of war.

War Production Board

The War Production Board was a U.S. government agency during World War II that coordinated the production of war materials and the distribution of resources among industries.