Hi. I am a bit confused about the wave-particle duality. My textbooks say that matter waves are waves of probability and and the particles present at a point depend up on the probability at that region. So how i imagine it is, if suppose the wave is a sine wave, the particles would also travel in sine wave format where the number of particles present at a region is proportional to the square of sine value at that region. is my idea correct? And what is the difference between this sort of wave and EM waves?