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Mathematics
Mathematics
Problem
Find the mean of the data given below. Class interval (in cm): 120–140, 140–160, 160–180, 180–200, 200–220 Frequency: 4, 5, 6, 3, 2 a)
166
166
166
b)
174
174
174
c)
164
164
164
d)
154
154
154
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