- #1
GreenPrint
- 1,196
- 0
Homework Statement
Show that the formula: P(AΔB) = P(A) + P(B) - 2P(A[itex]\bigcap[/itex]B)
Homework Equations
The Attempt at a Solution
P(AΔB) = P(A) + P(B) - 2P(A[itex]\bigcap[/itex]B)
P(AΔB) = P(A[itex]\bigcap B^{c}[/itex])[itex]\bigcup (A^{c}\bigcap B)[/itex]
I don't know where to go from here. Thanks for any help.