Question

I did a projectile lab and I would like to know what this question means:

Find the standard deviation in your observations for time and dx

Answer 1

It's statistical, but do you make that accuracy in your course lab.
http://www.mathsisfun.com/data/standard-deviation.html

Answer 2

Good link, @Catch.me !

So, there you have it, @hihellohi !

Standard deviation helps you look at some section of your experimental data and sort of say how spread out it is, considering how much data you have. So, try to think about "deviation" as "how spread out it is." Or, less vaguely but a little vague yet, how different each piece of data is from the other pieces, on average (it's an average so that it can describe all the data).

The steps are posted in that link from @Catch.me .

You have two collections of data that you want to get a feel for the spread of. Well, your teacher wants you to. Anyway, that's commonly the standard deviation.

Good luck! Just take one at a time, from 'time' and '\(\text dx\),' and find the standard deviation of each!