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System A has a 10% chance of being "down", while system B has a 5% chance of being "down".

What is the probability that:
1) Neither computer system will be operational.
2) Both computer systems will be operational.


  • Math -

    1) If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

    .05 * .10 = ?

    2) .95 * .90 = ?

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