# Memory card failure?

Started 3 months ago | Discussions thread
Re: Memory card failure?

JasonTheBirder wrote:

Let's say for illustration purposes, the probability of a single card failing over the typical use case of a photographer was 1/100000. (One in a hundred thousand). Now let's say every photographer uses about twenty cards in their lifetime. Then the probability that a given individual photographer will face at least one card failure is approximately

1 - (99999/100000)^20 = 0.00019998... ~= 1/5000.

If there are a million photographers, that still leaves an expected value of 200 unlucky photographers out there, even though most of them will be oblivious to the problem.

Not bad odds.....unless you happen to be one of the 200 and hopefully this person had a second card slot.

David

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