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

experiment times: .15, .13, .16, .14, .15, .14, .15, .14

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 11:36pm
On my trusty TI30 calculator, I ran the data as

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

So I don't 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.

## Answer This Question

## Related Questions

- Math - I know someone has posted this question before but didn't get an answer ...
- Physics - An object is released from rest and falls in free fall motion. The ...
- Math Help! - The box-and-whisker plots show data for the test scores of four ...
- Math - The box-and-whisker plots show data for the test scores of four groups of...
- Physics - How do i do this ? ? ? : Suppose you have collected the data shown ...
- Math - Make a box-and-whisker plot of the data. 21,21,22,20,13,13,27,24 A. The ...
- physics please help. - how do you measure uncertainy?? for instance.. if the ...
- math - The range in a frequency distribution is 22. If the lowest value is 3, ...
- Math - A scientist is monitoring the temperature of a holding tank containing ...
- Math - A scientist is monitoring the temperature of a holding tank containing ...

More Related Questions