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Question

What is the mean of the following data?
ValueFrequency02022040360804801001 
  1. 37
  2. 65
  3. 48
  4. 45


Solution

The correct option is C 48
ValueFrequencyxi0202102040330608047080100190 

Mean = fixixi= 10×2 + 30×3 + 70×4 + 90×110= 48010= 48

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