Biology / Bio 1023 · Atom · ~20 seconds
The Rule of Multiplication
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The rule of multiplication, called the product rule in some texts, gives the probability of two independent events both occurring by multiplying their probabilities.
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The chance that two gametes each carry a given allele is one half times one half, or one quarter.
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The rule of multiplication requires true independence — it misstates the odds if one event's outcome affects the other's.