caculate the mean for the following frequency distribution:
Marks | 10-20 |20-30 I 30-40 40-50 |50-60 | 60-70 |70-80
Frequency 3 |7 |10 |6 |8| 2 |4|
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Answer:40-50 it is mean
Step-by-step explanation: there are 7 terms
By calculating mean the middle term is mean term .
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Step-by-step explanation:
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