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Re: Experimental Design
Posted: January 8th, 2009, 2:41 pm
by binary010101
Work fast and know how to use your calculator.
Re: Experimental Design
Posted: January 9th, 2009, 10:39 am
by whiskers
yes, please learn 2 use a calculator
Re: Experimental Design
Posted: January 9th, 2009, 11:53 am
by binary010101
If you're unfamiliar with your calculator's layout, it will cost you some time just learning how to use the functions.
Binary recommends a Casio fx-115MS calculator for this event.
Re: Experimental Design
Posted: January 10th, 2009, 8:16 am
by dudeincolorado
i like my ti -30xa it pretty amazing
Re: Experimental Design
Posted: January 14th, 2009, 4:49 pm
by binary010101
Any good, simple experiments I can use to practice with?
Re: Experimental Design
Posted: January 14th, 2009, 4:56 pm
by jazzy009
theres a good practice lab on the soinc website.. lets see...
http://www.isd77.k12.mn.us/resources/cf ... Inter.html
i just tried it and the site is down. but should be back up within a few days. its got a good yeast lab you can do
Re: Experimental Design
Posted: January 14th, 2009, 6:53 pm
by dudeincolorado
Re: Experimental Design
Posted: January 15th, 2009, 2:51 pm
by binary010101
Yep. This is good. My partner(s) and I have been working with the "marble and ramp" experiment.
Re: Experimental Design
Posted: January 16th, 2009, 10:28 am
by ktrujillo52
Anyone here know how to do standard deviation?
Re: Experimental Design
Posted: January 16th, 2009, 12:20 pm
by haven chuck
Heres the easy equation- (The root of (((xi-mean) squared) + ((xi-mean) squared) + ("" until no more inputs) divided by the number of inputs minus 1))
xi stands for each individual input.
Everything is inside a square root sign, and everything inside is over the number of inputs. (I included both of that into the equation)