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Grade Calculation Formula:
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The grade calculation formula computes a weighted average of percentages based on their respective weights. It provides an accurate representation of overall performance when different assignments/exams have different importance.
The calculator uses the weighted average formula:
Where:
Explanation: Each percentage is multiplied by its weight, these products are summed, then divided by the total of all weights.
Details: Accurate grade calculation is crucial for tracking academic progress, determining final grades, and identifying areas that need improvement.
Tips: Enter percentages as comma-separated values (e.g., "85, 92, 78") and corresponding weights similarly (e.g., "0.3, 0.4, 0.3"). Weights don't need to sum to 1.
Q1: What if my weights don't add up to 1?
A: The calculator automatically normalizes the weights, so they can be any positive numbers (e.g., 1,2,3 or 30%,40%,30%).
Q2: Can I use this for non-percentage grades?
A: Yes, as long as all grades are on the same scale (e.g., all out of 100 or all letter grades converted to numbers).
Q3: How many grades can I calculate at once?
A: There's no strict limit, but ensure you have matching numbers of percentages and weights.
Q4: What if I have extra credit?
A: Include it as an additional percentage with its weight (e.g., 110% with weight 0.1).
Q5: Does order of percentages/weights matter?
A: No, as long as each percentage corresponds to its weight in the same position in both lists.