# statistics

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EVENT PROBABILITY
First set of O- rings function
correctly and second O-ring
functions correctly .7552

First set of O-rings malfunction
and second O-ring functions
correctly .1138

1st set of O-rings function
correctly and 2nd O-ring
malfunctions .1138

1st set of O-rings malfunction
and 2nd O-ring malfunctions .0172

Fill in the probability distribution table

x P(x)
0
1
2
Total

Then using the probabilities from the table find

P(Explosion on lift-off)

P(Safe lift-off)

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