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31 January, 00:50

If a safety switch has a 1 in 10 chance of how many switches would u need for it to have a 1 in one million chance of failing

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  1. 31 January, 03:38
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    The probability that one switch fails is 1 from 10. According to this the probability is 1/10=0.1.

    If you need to have only 1 switch from million to fail, this means that you need the probability 1/1000000=0.000001.

    In order to have this probability of one switch failing you will need 1000000 (million) switches.
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