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The mean is 0.1

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Q: If the probability of a defective bolt is 0.1 find the mean?
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If the probability of a defective bolt is 0.1find ---mean and the standard deviation of defective bolts in a total of 900 bolts?

(i) mean = np = (900)(0.1) =90 (ii) Std Dev = sqrt(npq) = sqrt((900)(0.1)(0.99)) = 9.4393


What does it mean to find the probability of an event?

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The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.


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Metric fluid bolt spec? Exactly what does that mean? You want the torque specifications of a certain bolt. What bolt, used to attach what are you referring to?


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The probability level for an outcome is the probability that the outcome was at least as extreme as the one that was observed.