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all six work Under Challenger ﬂight conditions ( person tests negative P @ Assuming joint failures indep.: : P sixth ﬁeld joint works person tests positive § .
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. : all six ﬁeld joints (sealed by Orings) work.
ﬁrst ﬁeld joint works 85 , found . £ ...
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 Spring '08
 Ripol
 Statistics, Conditional Probability, Probability, Probability theory

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