there are heaps of other ways too

mean var word
ADCinput var word


average

Code:
    mean = 0
    for i = 0 to 9
    ADCIN 0, ADCinput
    mean = mean + ADCinput
    next
    mean = mean/10 
    DEBUG "mean ",DEC mean,",",DEC mean>>2,13,10

running average
Code:
   ADCIN 0, ADCinput
   mean = mean */ 200 + ADCinput */ 55
   DEBUG "mean ",DEC mean,",",DEC mean>>2,13,10