\(N = 357\)
\(\frac{N}{2}=\frac{357}{2}=178.5\)
The cumulative frequency just greater than \(\frac{N}{2}\)is 193 then the median class is 19.5-24.5 such that:
l = 19.5, f = 140, F = 53, h = 5
Median = l + \(\frac{\frac{N}{2}-F}{f}\times h\)
\(=19.5+\frac{178.5-53}{140}\times5=23.98\)
Nearly half the women were married between the age 15 and 25