# Calculating Weighted Average: Method, Formula & Example

Instructions:

question 1 of 3

### Why would you use a weighted average instead of a traditional average calculation?

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### 2. In a History course, a student's grade is composed of papers (40%), tests (40%) and a final exam (20%). The student has earned a 90 value on all papers and 80 value on all tests. What is the minimum score the student needs to earn on the final exam to achieve an overall grade of a B+ (87.0 before rounding)?

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Usually in math we use a traditional average, but when the values you're averaging hold different weights, you use a weighted average. This quiz asks you to recall and calculate weighted average.

## Quiz & Worksheet Goals

This weighted average quiz assesses your knowledge by having you do the following:

• Recognize reasons to use a weighted average
• Calculate a weighted average when given values and percentages
• Calculate a value when given other values, percentages, and the weighted average
• Calculate which option has a lower average price

## Skills Practiced

• Reading comprehension - draw from relevant information about weighted average found in the corresponding lesson
• Problem solving - calculate weighted averages
• Information recall - remember reasons to use weighted average