CBSE Class 10: Arithmetic Mean of Grouped Data Videos | Arithmetic Mean of Grouped Data
Arithmetic Mean of Grouped Data
The video explains an example based on the concept of Arithmetic Mean of Grouped Data
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- 9.If the mean of the following data is 91.Find the missing frequency :- C. I. Frequency 0-30. 12 30-60. 21 60-90. X 90-120. 52 120-150. Y 150-180. 11 Total 150
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by assume mean method
- Statistics
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solve
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- assumed mean method
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Write formula for find out the mean of the data using assumed mean
- Mean of 100 numbers was found to be 50. But later on, it was observed that one of the number 150 was wrongly taken as 50