which can trap dipoles of low kinetic energy. An external electric field will mostly increase the magnitude **** of trapped dipoles, but rotate to align dipoles free from such trapping, giving rise to two different types of dielectric responses as shown in Eqs. (\[eq:BZT-susceptibility\]), \[eq:BZT-frequency\], and (\[eq:PZN\]). This approach, by proposing analytical equations, provides insights to experimental and numerical results of relaxors. **** Among other things, it shows that the characteristic temperature, $T_{m}$, is determined by the Maxwell-Boltzmann distribution of dipoles’ kinetic energy, as well as their ability to respond to the applied electric field. We can also conclude that lead-free relaxors (e.g., BZT) are different from lead-based relaxors (e.g., PZN-0.13PT) in that (i) The mechanisms determining $T_{m}$ are different. For lead-based relaxors, it appears $T_{O}$ alone in able to determine $T_{m}$, while for BZT, both $w_{1}\left(T\right)$ and $P\left(E_{b},T\right)$ are important; and (ii) For BZT, $\chi_{1}$ and $\chi_{2}$ are on the same order, in contrast to the fact while $\chi_{1}\gg\chi_{2}$ for the Pb-based relaxors, indicating that dipoles outside the average potential well dominate dielectric response of Pb-based relaxors. With these results, we hope this statistical approach can help better understanding important relaxor systems and the proposed equations be adopted in 