Fill in the blanks to make the statements true.

In a given data, arranged in ascending or descending order, the middle most observation is called _________.

Fill in the blanks to make the statements true.

The mean of a data is defined as ____.

Fill in the blanks to make the statements true.

In a set of observations, the observation that occurs the most often is called _____ __.

Fill in the blanks to make the statements true.

Mean, Median, Mode are the measures of _________.

Fill in the blanks to make the statements true.

The probability of an event which is certain to happen is _________.