arrange them from least to greatest form
250 cal., 270 cal., 280 cal., 280 cal., 320 cal.,
Mean = [tex] \frac{250+270+280+280+320}{5} [/tex]
(5 because there is a total of 5 fast food restaurants' hanburgers)
= [tex] \frac{1400}{5} [/tex]
Mean = 280 calories
Median = The number exactly in between,
In midst of these numbers, 280 is in the mid-way
Median = 280 calories
