Really? You don't always round up? Huh.
Technically, no, 3.965 would round to 3.96.
Off-topic discussion. Wanna talk about corsets, duct tape, or physics? This is the place. Detailed discussion of any current-season TV must be whitefonted.
Really? You don't always round up? Huh.
Technically, no, 3.965 would round to 3.96.
Rounding up from five is not common knowledge?
Rounding up from five is common knowledge where I went to elementary school, dammit. This "round from five to the even number" business is entirely too crazy for me. Also, get offa my lawn.
Jesse, where were you in 2nd grade? you didn't learn that rule?
OK, waitaminnit here. Rounding up from five is not common knowledge?
Dag, people, did you not read -t's post??
There is an actual rule of rounding that if you are rounding from a 5 you go to the even number.
She's saying you don't ALWAYS round UP from 5, you round to the EVEN NUMBER.
People put their GPAs on their resumes? I had no idea.
Signed,
Clueless Fine Arts Major
Happy birthday, Buffistas!
There is an actual rule of rounding that if you are rounding from a 5 you go to the even number
This is a weird rule. Is it new? Did I forget something this big?
OK, thanks for the clarification Jesse. I have never heard that before and am suspicious without someone explaining the rationale.
I can't find any confirmation of my rule, but it's what I was taught. If you always round 5s up, you introduce a bias that is eliminated if you round to the even number, because half the time its up and half the time its down.
Aha, found a reference. Microsoft calls it Banker's Rounding: Banker's rounding rounds .5 up sometimes and down sometimes. The convention is to round to the nearest even number, so that both 1.5 and 2.5 round to 2, and 3.5 and 4.5 both round to 4. Banker's rounding is symmetric.
This site agrees with -t.
I guess the rational behind this is not to round always up if it's in the exact middle, meaninf 5. Rounding always up will eliminate the "half" nature of that 5, so you have to divide to cases in which you round up and cases in which you round down. I have no idea why the evens get the special treatment, though.
[Edit: x-post wit -t]
Banker's rounding hurts me. In which arenas is it applied?