(Expectation   E   [((μm)^2)]   of   void   area   in   target   compartment=(gross   area   [((μm)^2)]   of   internal   voids   of   one   target   granulated   particle)/{(cross-sectional   area   [((μm)^2)]   of   one   target   granulated   particle)×(area   [((μm)^2)]   of   target   compartment)}Equation   (A)Dispersity   D   (%)=(sum   total   [((μm)^2)]   of   areas   of   compartments   that   satisfy   (gross   area   [((μm)^2)]   of   voids   in   target   compartment)/(expectation   E   [((μm)^2)]   of   void   area   in   target   compartment)=0.5   or   greater)/(sum   total   [((μm)^2)]   of   areas   of   all   the   compartments   of   one   target   granulated   particle)×100Equation   (B))