The five numbers 1, 2, 3, 4 and 40 have a mean of 10. How many of the five numbers are less than that mean? Enter the number of values.
Respuesta correcta
4 · Unidades aceptadas: values
Explicación
The numbers total 50, so the mean is 10, and the numbers 1, 2, 3 and 4 all fall below it while only 40 rises above it, giving 4 values underneath. Expecting the data to split evenly around the average would suggest an answer near 2 or 3, but an even split of counts is a property of the middle value, not of the mean.