Well that 10% is highly unlikely to be evenly distributed amoungst the population. The percentage of those that smoke weed from a sample of university students

Well that 10% is highly unlikely to be evenly distributed amoungst the population. The percentage of those that smoke weed from a sample of university students is likely to be higher than the same sample taken from the age groups of 60yr old and above. You can make statistics say whatever you want, pretty sure I could get a pretty high percentage of weed usage if i limit my sample size to Bob Marley and Snoop Dogg.