Mathematics Co-Development Group, APF
(2021)
Deciphering the median formula - part 2 : from the Ogives.
At Right Angles.
pp. 56-63.
ISSN 2582-1873
Abstract
In Part 1 of this series, we discussed how to obtain
the median formula. In this article, we will
discuss how the same formula can be derived from the
corresponding ogive, the graph mapping the cumulative
frequencies against the upper (or lower) class-limits. Since there
are two kinds of ogives viz. (i) less than and (ii) more than, we
will show how either can be used for this purpose. In addition,
we will discuss why the ogives intersect at the median.
Actions (login required)
|
View Item |