Basic Statistics for Epidemiology: Prevalence vs Incidence. In short, epidemiology is sort of the who what, when, why, how and where of disease. It doesnât involve any experimentation or clinical trials, so it is really of interest to public health, because it is just about what happens.
So if a queen-sized waterbed with a bladder-type mattress holds roughly 130 gallons of water that weighs in at 1,084 pounds plus the weight of the frame and two people.o keep the math simple let s assume that the mattress, frame and two adults weighs 1,300 pounds and that the bed assembly measures six feet by six feet taking up a total of 36 square feet of floor space. If we divide the weight of the bed by 36 the square footage-that gets us to 36 pounds per square foot.
Confidence votes 49.3K. Currently an undergraduate in Physical Sciences. It will hold more weight than you can ever put into it ! - My floor joists are 2x10 at 16 inch intervals, and I installed a 48 x 60 spa tub that holds about 20 cubic feet of water, that weighs around 1200 pounds.Include two average people in it and you have over 1,500 pounds ! - The floor holds just fine. mobile home with chassis included weighs between five and seven tons. I would guess that the chassis alone would account for around three fifths of this total so, three to f â¦ ive tons. ANS 2 I have seen some being moved from a defunct park nearby, and asked a driver of one of the moving trucks.