adamskhan9351 adamskhan9351
  • 07-03-2024
  • Mathematics
contestada

If x denotes a class mark and f₁ denotes the corresponding frequencies of the given data, what is the value of:

A. Σ xf₁
B. Σ x²f₁
C. Σ xf₁
D. Σ f₁

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