Quantitative evaluation of system reliability and integrity often involves probability related calculations. Basic probability theory, in general, is sufficient to cover these calculations. Here, I will describe basic probability theory.
Simple probability (1 of 2)
What is the probability that a card drawn at random from a deck of cards will be an ace? Since of the 52 cards in the deck, 4 are aces, the probability is 4/52. In general, the probability of an event is the number of favorable outcomes divided by the total number of possible outcomes. (This assumes the outcomes are all equally likely.) In this case there are four favorable outcomes: (1) the ace of spades, (2) the ace of hearts, (3) the ace of diamonds, and (4) the ace of cl...
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