Probability can be defined as the chance an
event occurring that measures the likelihood
that a particular event will or will not happen.
It is the ratio of the number of ways the specified
event can occur and the total number of
Measures of Dispersion
A measure of dispersion conveys information
regarding the amount of variability present in a set
If all the values are the same
There is no dispersion .
If all the values are different
Measures of Central
Measures of Central Tendency
Measures of central tendency are
statistics that summarize a
distribution of scores by reporting
the most typical or representative
value of the distribution.
The mean, median and mode are all