20.07.2013 Views

Matematika 4B - Katedra matematiky FEL ČVUT

Matematika 4B - Katedra matematiky FEL ČVUT

Matematika 4B - Katedra matematiky FEL ČVUT

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Další vlastnosti pravděpodobnosti:<br />

Princip inkluze a exkluze<br />

Opakování: P (A ∪ B) = P (A) + P (B) − P (A ∩ B).<br />

Mějme nyní tři jevy A, B, C ∈ A.<br />

P (A ∪ B ∪ C) = P [(A ∪ B) ∪ C] =<br />

P (A ∪ B) + P (C) − P ((A ∩ C) ∪ (B ∩ C))<br />

= P (A) + P (B) − P (A ∩ B) + P (C)<br />

− P (A ∩ C) − P (B ∩ C) + P (A ∩ B ∩ C)<br />

= P (A) + P (B) + P (C)<br />

− P (A ∩ C) − P (B ∩ C) − P (A ∩ B)<br />

24<br />

+ P (A ∩ B ∩ C)

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!