Carcass wrote:
The average (arithmetic mean) of the coordinates of the 7 labeled points on the number line is how much greater or less than the median of the coordinates of the 7 labeled points?
A. 4/7 greater
B. 3/7 greater
C. 1/2 greater
D. 3/7 less
E. 4/7 less
Here median of 7 labelled points = middle point of these 7 points i.e = 1 on the number line
and mean of 7 labelled points = \(\frac{(-4 - 3 + 0 + 1 + 2 + 3 + 4 )}{7}\) \(=\)\(\frac{3}{7}\)
Hence mean is less than median = \(1-\frac{3}{7}\) \(=\) \(\frac{4}{7}\)less
Option E