What is a probability to have five children of the same gender?
KEY POINTS
The Product Rule is used to determine the outcome of an event with two independent events; the probability of the event is the product of the probabilities of each individual event.
The Sum Rule is used to determine the outcome of an event with two mutually exclusive events from multiple pathways; the probability of the event is the sum of the probabilities of each individual event.
The Product Rule of probability is used to determine the probability of having both dominant traits in the F2 progeny; it is the product of the probabilities of having the dominant trait for each characteristic.
The Sum Rule of probability is used to determine the probability of having one dominant trait in the F2 generation of a dihybrid cross; it is the sum of the probabilities of each individual with that trait.
TERMS
probability
a number, between 0 and 1, expressing the precise likelihood of an event happening
product rule
the probability of two independent events occurring together can be calculated by multiplying the individual probabilities of each event occurring alone
sum rule
the probability of the occurrence of one event or the other event, of two mutually exclusive events, is the sum of their individual probabilities
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