Originally posted by DaveB
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Chance of them all failing = 0.73 * 0.77 * 0.77 * 0.89 * 0.89 * 0.94 = 0.32
Chance of at least one succeeding = 1 - 0.32 = 0.68 = 68%
It's been a while since I studied probability but that's how I remember it
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