Write the Word or Phrase That Best Completes Each Statement $S _ { n }$

question 9

Short Answer

Write the word or phrase that best completes each statement or answers the question.
Provide the missing information.
-The sum of the first n terms of a sequence is called the nth ________ sum and is denoted by $S _ { n }$

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Definitions:

Birth Control

Methods or devices used to prevent pregnancy as part of family planning.

Life Expectancies

The average period that an individual is expected to live, based on statistical averages of age, gender, and other demographic factors.

Birth Rates

The number of live births per thousand people in a population within a given year.

World's Population

The total number of people living on Earth at a given time, continuously changing due to birth rates, death rates, and migration patterns.