An early draft of Part 1 of my book "Probability Theory Without Tears" is available. This part deals with finte sample spaces.
The book is prepared for reading on a screen - a computer screen, a tablet or a phone. It is NOT meant to be printed on paper.
There is a facebook group called "Probability Theory Without Tears" where readers of the book can communicate with each other.
But this is definitely not a place to ask others to solve your homework problems. If you ask questions like "How do you solve the problem ...." your post will be removed and you will probably be blocked from this group.