Question

1. What is the aim of the statistical physics?
   (a) To determine a mean energy.
   (b) To determine a probability density function.
   (c) To determine fluctuations.
   (d) To determine system’s number of particles.
2. an Why

Answer 1

Statistical physics uses the theories of probability and statistics along with other mathematical tools to deal with large populations and approximations.

Its main purpose is to clarify the properties of matter in aggregate, in terms of physical laws governing atomic motion.

Basically, statistical physics is a tool to study a many particle system, its interactions and energy involved.

So, the correct option would be option A. Other options are the tools used by statistical physics to achieve this goal.