Respuesta :
Answer:
Answer D
Explanation:
We refer to mean or average income, that we get by dividing total aggregate income for a specific group or in this case groups (self-employed vs. those on payroll) by the number of units in that group.
There are different kinds of measurement. The option that the types of income average that we do refer is the mean.
The Mean-income is simply known as the overall income of area residents and then divided by the number of residents. The mean income measurement gives room for relative incomes in one area to be used in comparison with mean incomes in another area.
A lot of researchers have divided income classes into different categories such as poor, middle class, upper-middle class etc.
The average (mean) income is simply known as the sum of a set of numbers divided by the all of the numbers in the data set.
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