Given the following two distributions:

Group A	35	90	55	25	59	60	55	48
Group B	40	56	40	65	75	92	28	70

a)

For both distributions, calculate the following:

i.

mean

ii.

mode

iii.

median

iv.

variance

v.

standard deviation

b)

Sketch the empirical relationship graph based on your answer in a).

Hence determine the skewness of the distributions.