It matters not just what information is collected but also what inferences and predictions are made based upon it. Personal data is used by algorithms to make incredibly important decisions, like whether someone should maintain their health care benefits, or be released on bail.
The answer is I. 25 meters.
Answer: about 3.1 people per square kilometer, but varies with different locations. For example, the Australian Capital Territoy has the largest density of 171 people per sq km, followed bby Victoria (27), New South Wales (9.7), and Tasmania (7.6). Hope this helps :)