Which of the Following Would Be a Measure of Spread $\sum X _ { i } \cdot P \left( X _ { i } \right)$

question 37

Multiple Choice

Which of the following would be a measure of spread of a probability distribution.

• A) \(\sum X _ { i } \cdot P \left( X _ { i } \right)\)
• B) \(\sum X _ { i } ^ { 2 } \cdot P \left( X _ { 1 } \right)\)
• C) \(\sum \left( K _ { i } - \mu \right) \cdot P \left( K _ { i } \right)\)
• D) \(\sum \left( X _ { 1 } - \mu \right) ^ { 2 } \cdot P \left( X _ { 1 } \right)\)

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Definitions:

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The process by which the public's political opinions diverge significantly, often leading to two major, opposing viewpoint groups within a society.

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Congressional Democrats

Members of the Democratic Party who serve in the United States Congress, shaping and supporting legislation aligned with their party's policies.