Finding the median of grouped (continuous) data requires a special formula since exact values are unknown. This is a guaranteed question in Class 10 board exams.
Median divides the distribution into two equal halves โ 50% values fall below and 50% above the median.
Median = L + [(N/2 - cf) / f] ร h
Where:
Cumulative frequency is the running total of frequencies. For each class, add the frequency of that class to all previous frequencies.
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