Question

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.

Answer 1

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.