What is a weighted average?
Weighted Averages AMDM NIX

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•
Mathematics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A weighted average is a calculation that takes into account the importance or weight of each value being averaged.
2.
FLASHCARD QUESTION
Front
How do you calculate a weighted average?
Back
Multiply each value by its corresponding weight, sum up the results, and then divide by the sum of the weights.
3.
FLASHCARD QUESTION
Front
If a store sells 10 pounds of type A apples at $1.50, 5 pounds of type B apples at $2.00, and 3 pounds of type C apples at $2.50, what is the weighted average price per pound?
Back
$1.8056
4.
FLASHCARD QUESTION
Front
A student's final grade is calculated based on tests (40%), projects (30%), and participation (30%). If the scores are 85%, 90%, and 95% respectively, what is the weighted average grade?
Back
89.5
5.
FLASHCARD QUESTION
Front
If a student's test scores are weighted 40% for tests, 30% for quizzes, and 30% for homework, and the scores are 80%, 90%, and 95% respectively, what is the student's weighted average?
Back
87.5
6.
FLASHCARD QUESTION
Front
What is the formula for calculating a weighted average?
Back
Weighted Average = (Value1 * Weight1 + Value2 * Weight2 + ... + ValueN * WeightN) / (Weight1 + Weight2 + ... + WeightN)
7.
FLASHCARD QUESTION
Front
Why is a weighted average used instead of a simple average?
Back
A weighted average is used to give more importance to certain values based on their significance or frequency.
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