Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Trending News

Promoted
MTI
MTI asked in Ciencias y matemáticasMatemáticas · 1 decade ago

QUE PROBABILIDAD HAY DE ESTO?

Elabora el espacio muestral del experimento lanzar tres monedas. Mostrando la sumatoria de la probabilidad de cada columna, incluye los siguientes eventos:

A: todas son caras

B: primera y segunda son cara

C: primera y última cara

D: segunda y última cara

E: primera cara

F: segunda cara

G: última cara

H: una cara

I: dos caras

J: ~H

1 Answer

Rating
  • lou h
    Lv 7
    1 decade ago
    Favorite Answer

    E= {CCC, CCX, CXC, XCC, CXX, XCX, XXC, XXX}

    P(A)= P(CCC)= 1/8

    P(B)= P(CCX)+P(CCC)= 1/8+1/8= 1/4

    P(C)= P(CXC)+P(CCC)= 1/4

    P(D)= P(XCC)+P(CCC)= 1/4

    P(E)= P(F)=P(G)= 4/8= 1/2

    P(H)= 3/8

    P(I)= 3/8

    P(J)= 1- P(H)= 5/8

    Saludos

Still have questions? Get your answers by asking now.