The following data shows monthly savings of 100 families . Calculate the mode of the given frequency distribution.
Monthly savings(Rs) Number of families 1000−2000142000−3000153000−4000214000−5000275000−600025
Modal class is 4000-5000 within
f1 = 27, f0 = 21, f2 = 25, I = 4000, h = 1000
Mode = l + f1−f02f1−f0−f2×h
Mode = 4000 + 68×1000
= 4750