Question

What is the formula for the median of Grouped data?

(a) Median = L + [(n / 2 – cf) / f] * h

(b) Median = L + [(n / 2 + cf) / f] * h

(c) Median = L + [(n / 2 – cf) / f] + h

(d) Median = L * [(n / 2 – cf) / f] * h

The question was posed to me in an online quiz.

I would like to ask this question from Statistics in division Statistics of Mathematics – Class 10

Answer 1

Right option is (a) Median = L + [(n / 2 – cf) / f] * h

Easiest explanation: Formula for the Median of Grouped Data

Median = L + [(n / 2 – c.f) / f] * h

L = Lower limit of Median Class

cf = Cumulative frequency of the class prior to median class

f = Frequency of Median Class

h = Class size

n = Total frequency