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12 questions from this quiz
How often each value appears
The variable (different values)
Value appearing most frequently
The value itself, not 9
The middle value in order
12(n+1)\frac{1}{2}(n + 1)21(n+1)
ΣfxΣf\frac{\Sigma fx}{\Sigma f}ΣfΣfx
Sum of (frequency × variable)
Sum of all frequencies
5.5
Forgetting to multiply by frequency
4
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