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Probability Formula
want/total
Probability definition
a number from 0-1 that represents the chance an event will occur
0 represents
no chance
1 represents
100% chance
.5 represents
50% chance
independent events
The outcome of one event does not affect the outcome of the second event
dependent events
The outcome of one event does affect the outcome of the second event
multiplication rule for independent events
P(A and B) = P(A) x P(B)
multiplication rule for dependent events
P(A and B) = P(A) * P(B) subtract one from denominator
when to use multiplication rule
finding probability of 2 events happening together
