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El 40% de los estadounidenses que viaja en automvil busca gasolineras y tiendas de alimentos que estn cercanas o visibles desde la carretera. Supn que

El 40% de los estadounidenses que viaja en automvil busca gasolineras y tiendas de alimentos que estn cercanas o visibles desde la carretera. Supn que a una muestra aleatoria de n = 25 estadounidenses que viajan en auto se les pregunta cmo determinan dnde detenerse para comprar alimentos y echar gasolina. Sea x el nmero de la muestra que responde que busca gasolineras y tiendas de alimentos que estn cercanas o visibles desde la carretera (Mendenhall et al., 2015). (Utiliza la frmula binomial para resolver el ejercicio). Contesta:

  1. Cul es la media si x=10?
  2. Cul es la varianza de x?
  3. Calcula el intervalo
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