Mathematics · Statistics
Which of the following formulas is used to calculate the mean from classified (grouped) data using the Direct Method (Long Method)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1M = ∑fxN✓
- 2M = ∑fx∑x
- 3M = ∑xN
- 4M = ∑fNN
Correct answer
M = ∑fxN
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