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7.2

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7.2

  1. 1. •¿Cuál es la probabilidad de que allanzar dos monedas se obtenga almenos una cruz?
  2. 2. - Representar:• Casos posibles: El Espacio Muestral• Ω: E = { CC, C+, +C, ++ }• VA X “obtener 1 cruz”: { 0, 1, 1, 2 }• Casos favorables:• Ω: E = { C+, +C }* CC = sacar 2 carasC+ = sacar cara y cruz++ = sacar 2 crucesVA = variable aleatoria
  3. 3. -Calcular la Probabilidad:P(X) = CF/CP  2/4 = 0,5Hay una probabilidad de 0.5 de sacar al menos unacruz al lanzar dos monedas al aire.

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