What Is The Difference Between Radial Probability Density And Radial Probability Distribution?

What Is The Difference Between Radial Probability Density And Radial Probability Distribution? Probability density at a given point means probability per volume in the limit that the volume is infinitesimally small. Radial probability distribution at a given radius is the probability per distance that the event occurs in a infinitesimally thin spherical shell at that