This is the lower type
let us consider a class.
0-20, 20-40, 40-60, 60-80, 80-100
and frequency of following classes are 6,8,10,12,6,5.
from follow observations we get 60-80 as modal class because it has store frequency.
so, modal class=60-80.
hence lower limit=60 and upper limit=80.
f0=12, f1=10, f2=6 and class size =20
now by applying the formula of mode you can find mode.
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Answers & Comments
This is the lower type
let us consider a class.
0-20, 20-40, 40-60, 60-80, 80-100
and frequency of following classes are 6,8,10,12,6,5.
from follow observations we get 60-80 as modal class because it has store frequency.
so, modal class=60-80.
hence lower limit=60 and upper limit=80.
f0=12, f1=10, f2=6 and class size =20
now by applying the formula of mode you can find mode.