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probability
24/10/2022
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PROBABILITY: Probability = number of successful outcomes number of total outcomes. all probabilities. expected frequency add to one mutually Can't V/x exclusive events happen at the same time. The "Or" ruce for mutually relative exclusive events : frequency= P(A or B)- P(A) + P(B). "The "or" rule for exclusive events : (P (1A or B) = P(A) - P(A and B) миш PROBABILITY TREES: first choice 5/ -Blue •red. non-mutually red ·blue, total number Second choice. blue ·red The ends of the first and second x probability. are things that Level branches show the different outcomes how times magy the event occurs. number of trials. •The probabilities for each event are! Shown along the arm of each branch, they add up to one.
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