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3. Find the class boundaries for the following frequency distribution:
Weights |
frequency |
140 – 149 |
1 |
150 – 159 |
3 |
160 – 169 |
11 |
170 – 179 |
26 |
180 – 189 |
14 |
190 - 199 |
6 |
139.5 - 149.5
149.5 - 159.5
159.5 - 169.5
169.5 - 179.5
179.5 - 189.5
189.5 - 199.5