Select the correct statement(s) among those below regarding "distributions of discrete variables" or simply "discrete distributions".

a. Its mean must be a support value.

b.

The value of the cumulative frequency, F(x), is equal to 1 at any value greater than or equal to the largest support value i.e. cannot exceed 1.

c.

If the distribution of such a variable has only two support values and it is skewed to the left, then the relative frequency of the larger support value is greater than the relative frequency of its smaller support value.

d.

If the distribution of such a variable has only two support values and it is skewed to the right, then the relative frequency of the larger support value is greater than the relative frequency of its smaller support value.

e.

The cumulative frequency curve consists of distinct linear segments with zero slope (i.e., "flat" line segments).

f.

The cumulative frequency curve consists of distinct linear segments with positive slope

g.

If the distribution of such a variable has only two support values, then its mode is equal to its mean.

h. Every non support value of such distribution has zero cumulative frequency.

i.

The cumulative frequency curve is a straight line.

j.

Its median must be a support value if the distribution is symmetric.