I was hoping that somebody would check my work. Any input is appreciated.(adsbygoogle = window.adsbygoogle || []).push({});

A decay rate of a radioactive sample is being measured using a Geiger counter. During a 10 second measurement 100 decays are registered.

what is the error associated with the result?

[tex]\sigma_{y} = \frac{\sigma}{\sqrt{N}}[/tex]

My work:

[tex]\sigma^2 = np = (100)(1/10) = 10[/tex]

so [tex]\sigma = \sqrt{10}[/tex]

putting this into the previous equation where I make N=100 I get an error around 0.316. Did I do that right?

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# Homework Help: Checking my probability

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