How do I construct a program so that it calculates uncertainty of numbers from an array

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I am learning python and it is getting interesting. I would like to know how to calculate uncertainty in an array.

This is my 2D array loaded from a .txt file

[[5,5,5] 
 [3,4,5]
 [7,8,9]]

what i want to do is calculate the average of the of all the numbers in the row, and then have the uncertainty for that average.

in my case it would be 5+3+7 = 15/3 = 5 then 5+4+9 = 18/3 = 6 and so on. then i need the uncertainty of those average numbers so uncertainty of 5 and 6 and so on.

much appreciated.

Posted 6-Sep-14 3:20am

Member 11063284

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OriginalGriff 6-Sep-14 9:51am

And?
What have you tried?
Where are you stuck?

Member 11063284 6-Sep-14 10:27am

I don't know the formula for uncertainty. I got the average calculated. What i did to calculate uncertainty was

print average / sqrt(rows)

I don't know if that is the answer because i don't know the formula for uncertainty.

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OriginalGriff · Answer 1 · 2014-09-06T04:39:00

Solution 1

"I don't know if that is the answer because i don't know the formula for uncertainty."

So try here: http://www.wikihow.com/Calculate-Uncertainty[^] - about 1/3 of the way down is the steps for the calculation you want.

Posted 6-Sep-14 4:39am

OriginalGriff