For more Explanation ,look at the following picture:
I draw overlaid illustration " ValRas + ZoneRas" with colors
as is the picture , the zone that has value zero ( 0 ) get blue color
,zone one (1) with green color , zone two (2) and zone four (4) with red color.
the field in the table that define the name of zone is " VALUE".
the field in the table that define count of pixels inside the zone is "COUNT".
and other filed for statistics of values raster of zone.
for example :
->zone 0 ( blue zone ) has 5 pixels , so the count is 5, and maximum raster value is 2 ( as you see in ValRas illustration) and minimum value 0 so the range is 2 ...etc
->zone 4 (red zone ) has 2 pixels one of them NoData , so the count is 1 , its value is 3 so the maximum value is 3 and that is minimum too. the range logically is 0 ...etc
I hope my explanation be cleared.
thank you.