2+2=5 (with 2.444...+2.444...) technically, it is still 2 if you round to the ones place. but, if you ad, then round, you get five, IN YOUR FACE LOGIC/SCIENCE/MATH!!!
Name:
Anonymous2008-10-08 23:00
>>1
In physics (and basically all science), the error on your value must be at least half a unit of your least significant digit. When you round 2.444 to 2, that's actually 2 +- 0.5.
(2 +- 0.5) + (2 +- 0.5) = (4 +- 0.7)
4 += 0.7 experimentally agrees with 5 because it is well within two standard deviations. Therefore the answer is correct.
>>6
chem/bio student uber failure, how do i summed standard deviation???