@User agauss-calculated params can be one for all or one different for all depending on how they are used. Consider following .param defs:

.param VCCGAUSS=agauss(1.8, 0.05, 1)
.param VCC=VCCGAUSS

if you place 2 voltage source instances with value VCC and 2 voltage source instances with value VCCGAUSS this is what you get, in this case VCC param can be considered a LOT param, while VCCGAUSS is a DEV param.