In sample versus out of sample?

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...

A sample is a small part of anything or one of a number, intended to show the quality, style, or nature of the whole; specimen.

If the sample is homogeneous, then half of its volume hashalf of its mass and half of its weight.

Because there is no set ratio or reaction to form the mixture, it is just two materials mixed together, in any ratio or mass, so its properties do not vary from the two substances, since they are not...