(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

M = (a-b)/2 + a

a = 15

b=5

What is the uncertainty in M if the uncertainty in a and b is ±0.7?

2. Relevant equations

for c = a + b

Error in c =√[(error in a)^2 + (error in b)^2]

3. The attempt at a solution

Error in M = √[0.7^2 * 3] = 1.2124

The problem I am having is that we learn that the above formula can only work when the errors are independent of one another. the error in a is obviously not independent of the error in a. so i think i'm wrong.

What do you think?

Thank you.

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# Homework Help: Finding the uncertainty

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