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

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