Geometry

Question Analysis
This question is a basic application of the sphere volume formula in the context of a common children's toy.
The main focus is on substituting the given radius into the formula and performing simple arithmetic operations to find the volume.

Key Concept Explanation
The formula for the volume of a sphere is .
Here, represents the radius of the sphere, and we use this formula to calculate the amount of space the rubber ball occupies.

Step-by-Step Solution
Substitute cm and π ≈ 3.14 into the volume formula: .
First, calculate