The density of what? Any metal, liquid, etc. will have the same density since density depends on mass and volume of the sample (not volume of the universe).
Universe
The universe IS space, plus everything that's in it.
Universal (pervading the universe) or cosmic(relating to the universe).
A galaxy is a portion of the universe that is gravitationally bound and can be separated from the rest of the universe by large distances.
A sampling universe is what a sample is intended to represent.
sample is the population we make our study about them.
The sampling universe is the totatility of items/events from which you can select or sample for statistical analysis and description.
Random sample
One possible sample constructed to represent the major characteristics of the universe is the cosmic microwave background radiation. This radiation is a remnant of the Big Bang and provides clues about the early universe's temperature and density. By studying this radiation, scientists can gain insights into the universe's origins, evolution, and composition.
quota sample
Universe is the total population from which the sample is drawn. For example, if you are sampling 500 houses from a city that has 10,000 houses, the universe here is the 10,000 houses.
I will assume the sample is random. In general, the larger the sample, the smaller the percentage error will be (the difference between percentages in the sample, and the percentages in the universe from whence the sample is taken). The percentage error tends to go down as the square root of the size of the sample.
The density of what? Any metal, liquid, etc. will have the same density since density depends on mass and volume of the sample (not volume of the universe).
find a group to represent the universe
Find a group to represent the universe
Find a group to represent the universe