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Mathematics 10 Online
OpenStudy (sepeario):

I have a simple question on probability, I need help with 8b) please. http://i.imgur.com/dQRWDbe.jpg

Vocaloid (vocaloid):

first find A' A' = 1 - A = ?

OpenStudy (sepeario):

A complement is 0.24?

Vocaloid (vocaloid):

good, then use the formula like you did before

OpenStudy (sepeario):

wouldn't the formula just be Pr(A' union B) = Pr(B)-Pr(A intersection B)

Vocaloid (vocaloid):

yeah, just change all the A's to A'

OpenStudy (sepeario):

okay so would the answer be 0.84-0.68?

Vocaloid (vocaloid):

hm not quite

OpenStudy (sepeario):

okay so could you please explain the formula i would use

Vocaloid (vocaloid):

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