What was the most difficult concept to understand so far and what tools might help you. I have queries regarding the result and probability, both experimental and theoretical. I am confused despite numerous attempts at explanation and examples.

It seems like you're struggling with the concepts of experimental and theoretical probability. This is a common issue in statistics, but don't worry, there are several tools and strategies that can help you understand these concepts better.

1. Understanding the Difference: Theoretical probability is based on the possible outcomes in a perfect world. For example, when you flip a coin, the theoretical probability of getting heads is 1/2. Experimental probability, on the other hand, is based on the number of times an event occurs out of the number of trials. So if you flip a coin 100 times and get heads 60 times, the experimental probability is 60/100.

2. Use Visual Aids: Diagrams and graphs can be very helpful in understanding probability. For example, you can use a tree diagram to visualize all the possible outcomes of an event.

3. Practice Problems: The more you practice, the better you'll understand. Try solving various problems on theoretical and experimental probability. Start with simple problems and gradually move to more complex ones.

4. Use Online Tools and Apps: There are several online tools, apps, and websites that provide step-by-step solutions to probability problems. Some of these include Wolfram Alpha, Khan Academy, and various mobile apps dedicated to statistics.

5. Get a Tutor or Study Group: Sometimes, it's helpful to have someone explain concepts to you in a different way. Consider getting a tutor or joining a study group. You can also use online platforms like Chegg, where you can ask questions and get answers from experts.

Remember, it's okay to find these concepts challenging. With time and practice, you'll get better at understanding and applying them.