.
It means the following:
If
,
,
,
,
and
are the positive integer numbers of votes obtained in each of the six cities
ordered in the ascending sequence, then
= 300.
It also means that
,
,
are not greater than 300, while
,
,
are not lesser than 300.
See the definition and explanations of a "median number" at these links
- https://www.mathsisfun.com/median.html
- WHAT IS Median