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Considere que en una escuela preparatoria el 40% de los alumnos estn a favor de que la eleccin del presidente del crculo estudiantil sea por

Considere que en una escuela preparatoria el

40%

de los alumnos estn a favor de que la eleccin del

presidente del crculo estudiantil sea por "voto secreto". Si 10 estudiantes son elegidos al azar, calcule la probabilidad de

a) Ms de la mitad de ellos son un favor.

R= 0.1663

b)

Menos de la mitad de ellos son un favor.

R= 0.633

Exactamente la mitad de ellos son un favor.

R= 0.200

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