Central tendency is given by -

a) Mean

b) Median

c) Mode

d) Variance

e) Range.

a.ac

b.bc

c.abc

d.bcd

e.acd

Statistical averages

An average or central tendency of a data set refers to a measure of the middle or expected value of the data set.

That means, average implies a value in the distribution around which the other value are distributed.

It gives a mental picture of the central value.

The commonly used statistical averages are -

Arithmetic mean (or mean)

Median

The mode