Una manera de obtener muestra de 150 individuos es realizar una urna com 1500 papelitos lo cuales contengan en nombre de cada uno d los ciudadanos y luego escoger al azar los 150 papeles que corresponderán a la preferencia

The field lines around one end of a bar magnet are shown below based on the diagram, what can you conclude about the pole of the magnet? a.is a south pole because the field hnes spread out from this end b.a north pole because the field lines spread out from this end c.a nouth pole because the field lines enter the magnet at this end d.is a north pole because the field lines enter the magnet at this end