I've completely forgot how this works.
Here's my table, could anyone please start me off with the std dev of some of these:
Thanks in advance! In a pickle.
I'll do the Standard Deviation for Item 2:
1: Find arithmetic mean:
2. Find the deviation of each number from the mean:
3. Square each Deviation:
4. Add the squares:
So, we have:
5. Now we divide by the number of values:
6. Now we take the positive square root of what we have so far:
And there you go.
A formula would be: