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If a country's average age is rising and the gap between mean age and median age is also widening, what may this indicate?

Answer and explanation

Correct answer: The age distribution may be skewed, with some age groups influencing the mean more strongly

The mean age is calculated using the ages of all people, so unusually large or small groups can pull it upward or downward. The median age is the middle point: half the population is younger and half is older. They are equal only in some distributions, not as a general rule.

If the average age rises, the population may be becoming older overall. If the gap between mean and median also widens, the ages are likely not distributed symmetrically. A relatively large group at one end, or another uneven concentration, may influence the mean more strongly than the median. This supports the interpretation in option A; it does not prove that every age group is equal or that no elderly people exist.

Related tags

Mean AgeMedian AgeAge DistributionPopulation StructureAge StructurePopulation CompositionGeographyClass 12 Mcq

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