Not at all. The density remains the same.
Chawad says... They are directly proportional
The amount and the mass are directly proportional. Halving the amount halves the mass, and vice versa.
each object/event/person/whatever is chosen randomly from the population.
A sample is a subcollection of members selected from a population. (Ref Triola, Elementary Statistics). A sample may be real or hypothetical. Real- Ten patients at the hospital were interviewed...