medkid06

how do they take off for significant figures?

is each one wrong that has the round sig figs, or is there a max (1-2 pts overall?)

test is tmrw. -_-

thanks for the help!

Catalysis

I think its max. of -1 point per problem.

If you are within 1 sigfig away, they don't take points off.

medkid06

so like if i put 3 sig figs when it should be two its okay?

concretejungle

^ Yes. Don't worry about it.

Peytoncline

if you mess up on sig figs, it's only 1 points for the entire problem

and, on the directions, it says that if you have + or - one sig fig from what's accepted (let's say the answer has 1.55, and you put either 1.6 or 1.547).. they don't count off for that (according to my teacher).. you have to pretty much blatently screw up sig figs to get counted off (like put 4 sig figswhen there should only be 2)... for most problems, the set is 3 sig figs, from what i've seen.. so when in doubt, go with 3

megabnx

My teacher actually told our class that they grade them either as having the right number of sigfigs, or as having exactly 3. In the end, we only use 3 for every case. Just gets a little confusing for a bit, because if you use the Princeton book, its pretty obvious that their sample questions don't actually count their sigfigs....

Peytoncline

yeah.. on 75% of the questions, there'll be 3 sig figs... on others there'll be 2 or 4, but 3 is usually a set standard