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For a grouped distribution, n = 50, cf before the median class = 20, f of median class = 12, l = 25, h = 10. Find the median.

Class 10Median of Grouped DataStatistics and Probability

A29.17
B26.17
C58.34
D32.17

Step-by-Step Solution

\frac{n}{2} = 25

. Median =

25 + \frac{25 - 20}{12} \times 10 = 25 + \frac{5}{12} \times 10 = 25 + 4.1667 = 29.17

(approx).

Answer: A) 29.17

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