Using the Addition Rule for events that can happen together (called non-mutually exclusive events) can be tricky.

1. Understanding Overlap:

   • Non-mutually exclusive events can happen at the same time, which makes the calculations harder.

2. Formula:

   • You can use this formula: P(A or B) = P(A) + P(B) - P(A and B). Make sure to use it correctly.

3. Challenges in Finding Overlap:

   • Finding P(A and B) can be tough because it needs exact information about how the two events overlap.

But, if you analyze the data carefully and organize it well, you can make these challenges easier to handle.