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A student's grades (with units) are: 1 (3 units), 1 (5 units), 1.25 (3 units), 1.75 (3 units). What is the weighted average (GWA)?

  1. 1.25
  2. 1.21
  3. 17
  4. 1.46

Answer

B. 1.21

Solution

GWA = Σ(grade × units) ÷ Σunits = 17 ÷ 14 = 1.21.

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