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OpenStudy (anonymous):
I don't know what "and" means in probability. Does it mean you add the two fractions? Here's an example of a question: What is the probability that the arrows will land on the red section and on the number 3 of the spinners?
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Parth (parthkohli):
It means that you have to MULTIPLY the fractions.
Parth (parthkohli):
You add when the word 'or' is used.
OpenStudy (anonymous):
Thank you!
OpenStudy (zarkon):
independence and AND you multiply Mutually exclusive and OR you add
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