martes, 6 de noviembre de 2012

Unit 5 - Longevity

The word "longevity" is sometimes used as a synonym for "life expectancy" in demography - especially when it concerns someone or something lasting longer than expected (an ancient tree, for example) - however, the two words have slightly different definitions. In a similar dichotomy to "precision" and "accuracy", "longevity" refers to the average number of years that a single person lives, whereas "life expectancy" refers to the number of years that the average population lives. This is illustrated by the fact that a drastic increase in life expectancy (due to a larger portion of the population beginning to live longer) may be accompanied by a small increase in the overall longevity of the population.

2 comentarios:

  1. Hello, Luis,

    Nice illustration about the topic.

    Do yo think that senior citizens in Costa Rica are taking advantage of their free time when they retired? Are they busy and entertained?

    Best regards,

    Prof. Krissia Cantillano Prado

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  2. i believe senior people in costa rica has an advantage because nowadays we have a lot of foundation to help them. An example of their foundations are the adulto mayor dance class in some parks in downtown San Jose everyday.

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