OTHER MEASURES OF CENTRAL TENDENCIES

1. Mean: Average value f _k calculated from all observations (center of gravity).

   Example - Found mean X to be 3.15 people

2. Mode: Most frequently observed value of X _k , highest f _k .

   Example - Maximum f _k = 8 cars occurs when X _k = 2 people

3. Median: Value of ordered X _k that divides data in half.

   Example - Half (n/2 = 10) data points lie below, half above 3

4. Mid-Range: Value halfway between minimum and maximum observed values.

   1/2 (Maximum + Minimum) = 1/2 (6 + 2) = 4 people