### Channel noise

Posted:

**Sun Aug 26, 2018 4:50 am**Hi guys,

One knows, an ionic channel can be either open or closed - if we take a look at N channels, the probability that n channels are open needs to follow a binomial distribution.... now the standard-deviation is proportional to the square root of the considered channels -- therefore : more channels are producing noise proportional to the square root .... I read (in some papers) it should be proportional to the inverse of the square-root... but I don't see the logic behind - could you please give me a short explanation or do you know papers explaining this certain issue ?

Thank you in advance and kind regards

One knows, an ionic channel can be either open or closed - if we take a look at N channels, the probability that n channels are open needs to follow a binomial distribution.... now the standard-deviation is proportional to the square root of the considered channels -- therefore : more channels are producing noise proportional to the square root .... I read (in some papers) it should be proportional to the inverse of the square-root... but I don't see the logic behind - could you please give me a short explanation or do you know papers explaining this certain issue ?

Thank you in advance and kind regards