Question

16 mark for review while reviewing scores from a test on contralateral hemispheric lateralization, a teacher discovered that the mean score was higher than the median. which of the following statements is most likely correct? a the range of the set of scores is the difference between the mean and the median. b the standard deviation is equal to the mean. c the distribution of scores for the test is normal. d the distribution of scores for the test is positively skewed.

Explanation:

En una distribución positivamente sesgada, la media es mayor que la mediana debido a que los valores extremos en la cola derecha de la distribución elevan el valor de la media. El rango se define como la diferencia entre el valor máximo y el mínimo, no entre la media y la mediana. La desviación estándar y la media no son generalmente iguales, y en una distribución normal, la media, mediana y modo son iguales.

Answer:

D. The distribution of scores for the test is positively skewed.