Am stuck showing: P(AUBUC)=P(A)+P(B)+P(C)-P(AnB)-P(AnC)-P(BnC)+P(AnBnC)

[Kitimbo]

Given A,B and C are events in the same experiment.
Show that P(AUBUC)=P(A)+P(B)+P(C)-P(AnB)-P(AnC)-P(BnC)+P(AnBnC)


Forgive me for not showing any working but I don't uderstand this probability no

 

[stapel]

Given A,B and C are events in the same experiment.
Show that P(AUBUC)=P(A)+P(B)+P(C)-P(AnB)-P(AnC)-P(BnC)+P(AnBnC)

Forgive me for not showing any working but I don't uderstand this probability no

Has your class covered set-notation statements of probability at all? Have you studied how to throw out double-counted events?

Thank you!