# Answer to Question #21574 in Statistics and Probability for ChAli

Question #21574

Q. less the variability exist, the more an average is representative of a set of data. What's the meaning of statement? elaborate with example.

Expert's answer

Minor fluctuations reallyallow to assume that the average value is more representative of the general

population. Consider, for example, the general population of the

population of a country for which is determined by the average life expectancy.

Assume that the average life expectancy is 65 years, and the deviation in the

first case, 1 year, and the second - 3 years. Accordingly, in the first case,

the standard of living varies from 64-66 years, and the second - 62-68.

According to the first version of the mean value is more representative than

the other.

population. Consider, for example, the general population of the

population of a country for which is determined by the average life expectancy.

Assume that the average life expectancy is 65 years, and the deviation in the

first case, 1 year, and the second - 3 years. Accordingly, in the first case,

the standard of living varies from 64-66 years, and the second - 62-68.

According to the first version of the mean value is more representative than

the other.

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