Un examen consta de 5o preguntas, cada una con cuatro posibles respuestas. Por cada respuesta correcta se dan 3 puntos y por cada respuesta incorrecta se quita 1 punto. Las preguntas no respondidas no puntúan. Un alumno que respondió a 42 preguntas tiene 58 puntos. ¿Cuántos aciertos tuvo?

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average