Which of these natural processes can we actually see taking place?
- None of the above
Answer:
Secondary sources : The data which are found from individual person, organizations, agencies, books, journals, magazines, annual reports, etc. are secondary sources of population data.
<span>Any time you measure the results of a process you will see some variation. This variation comes from two sources: one, there are always differences between parts made by any process, and two, any method of taking measurements is imperfect—thus, measuring the same part repeatedly does not result in identical measurements.</span>
