Question

True or false? Classical mechanics is based on the principle of uncertainty and predicts all phenomena in terms of probabilities. It describes a sub-atomic world which is totally different from the world at macroscopic scales.​

Answer 1

here's your answer

Quantum mechanics is used at the scale of atomic and subatomic, whereas classical mechanics often is used at scales of molecules and larger objects. It is the quantum mechanics that is based on the principle of uncertainty and the probabilities.

Classical mechanics is based on the general principles stated by Sir Isaac Newton in his Philosophiae Naturalis Principia Mathematica in 1687.

The statement in the question is therefore, "False". It is actually the description of quantum mechanics.