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Probability of Joint Occurrences

# Probability of Joint Occurrences - Probability of Joint...

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Probability of Joint Occurrences Another way to compute the probability of all three flipped coins landing heads is as a series of three  different events: First flip the penny, then flip the nickel, and then flip the dime. Will the probability of  landing three heads still be 0.125? Multiplication rule To compute the probability of  joint occurrence  (two or more independent events all occurring),  multiply their probabilities.  For example, the probability of the penny landing heads is  , or 0.5; the probability of the nickel next  landing heads is  , or 0.5; and the probability of the dime landing heads is  , or 0.5. Thus, note that  0.5  ×  0.5  ×  0.5 = 0.125 which is what you determined with the classic theory by assessing the ratio of the number of  favorable outcomes to the number of total outcomes. The notation for joint occurrence is  P A   B =   P

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