when is frequency needed for a sample when does a survey have to be weighted why should frequency tables be weighted? which sample weights income categories? why do income categories get weighted what should be weighted for income categories how to weigh variables when do income categories need to be weighted weight frequency table for survey questions when should variables be weighted? why are frequency tables weighted when do you weight the frequency tables for different questions? what is used to weight variables why are categories of the intercept survey weighed in why is it important to weigh a sample for each variable how should frequency tables of an intercept survey be weighted? what should frequency tables be weighted when do frequency tables be placed by the demographic should frequency tables be weighted by the percent of the population in the overall survey? should income categories be weighted