Si A y P son independientes entonces Sol y Jesús lanzan dos monedas Sol afirma

# Si a y p son independientes entonces sol y jesús

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Si A y P son independientes, entonces: Sol y Jesús lanzan dos monedas. Sol afirma que los resultados posibles son: 2 caras, 1 cara y 0 caras, y asegura que la probabilidad de sacar cara es de . Jesús lanza las monedas sesenta veces y asegura que la probabilidad de que salga una cara es del 50 %. Decide quién está en lo correcto y razónalo. Jesús tiene razón, ya que el espacio muestral de este experimento es: E = { CC , CX , XC , XX } Entonces la probabilidad de que salga una cara es: P CX XC P CX P XC ( ) ( ) ( ) = + = + = 1 4 1 4 1 2 1 3 087 x xy xz xt x xy xz yz xt yz 2 2 + + + = + + + = x x y z t x z x y z t x y x y z t + + + = + + + + + + + + · P A P P A P P ( ) ( ) · ( ) = x + y z + t x + y + z + t A B x y z t x + z y + t P Q 086 = + + 6 7 1 7 1 7 6 7 5 7 4 7 1 7 1 7 1 7 6 7 7 1 7 1 7 1 7 · · · · · · · · · · · · · · , 1 7 205 343 0 59 = = = 3 7 1 7 1 7 6 7 7 1 7 1 7 1 7 19 49 0 39 · · · · · · · , + = = 13 SOLUCIONARIO

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• Winter '15
• palmerdev

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