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Mathematics, 28.10.2020 04:40 mallorynichole19

Un concesionario de automóviles monta una nueva campaña de promoción, en la que promete que los compradores de automóviles nuevos puede, si están descontentos por algún motivo, devolver el autos antes de dos días y recibir el importe íntegro. Se ha estimado que el costo que debe soportar el concesionario por cada devolución es de 2500 dólares. El concesionario estima que el 15% de los compradores devolverán los automóviles. Suponga que durante el período de campaña se venden 50 automóviles. Halle la media y la desviación estándar de número de automóviles que se devolverán.

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