Height
Interval (cm)
Tally marks
frequency
cum≤freq
cum≥freq
F.M
% freq
Class mid
140≤149
1
29
144.5
3.44
150≤159
8
9
28
1236
27.58
154.5
160≤179
15
14
20
2467.5
51.72
164.5
169≤179
4
5
696
13.79
174
179≤180
179.5
179
Total
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