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April 19, 2014

April 19, 2014

Posted by **Tiffany** on Saturday, October 18, 2008 at 11:16pm.

so i found the average to be .15

and the highest value was .16

the lowest value was .13

so what is the uncertainty? (in other words... .15 plus or minus what number?) please explain. thanks

- physics uncertainty -
**bobpursley**, Saturday, October 18, 2008 at 11:36pmOn my trusty TI30 calculator, I ran the data as

n=8, sigma(n-1)=.009258, mean=.145

So I dont know how you got your "average"

Three standard deviations would be +-.028

I have no idea what you have defined uncertainity as, three standard deviations is usually plenty.

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