Weighted Average

Presentation

•

Mathematics

•

10th - 12th Grade

•

Hard

Joseph Anderson

FREE Resource

6 Slides • 6 Questions

4.12 Weighted Averages Lesson

Multiple Choice

Mandy earns money by delivering groceries. She earned
$4 on Monday, $7 on Tuesday, $5 on Wednesday, $4 on
Thursday, and $5 on Friday. What is the average amount
of money Mandy earned per day?

Multiple Choice

Student ID number consists of 6 characters. The first four characters can be any number without restrictions. The last two characters are letters and cannot repeat. How many student IDs are possible?

6,760,000

4,738,500

6,500,000

Weighted Averages

Different "weights"- i.e.- percentages; are applied to different categories of the average
Your grade in this class is an example of a weighted average
It is an average resulting from the multiplication of each component by a factor reflecting its importance.

Multiple Choice

an average resulting from the multiplication of each component by a factor reflecting its importance.

Ervin, Brandon, and Gage need really loud alarm clocks.

weighted average

letterbox

pillarbox

Multiple Choice

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

Because you have a lot of numbers

Because the value you are trying to calculate is made up of categories which each have different weights.

Multiple Choice

Find the class grade for a student with grades: Test 89%, Quiz 92, Homework 86%, and Classwork 95%.
Tests are 60% of the grade, Quiz 15%, Homework is 10% of the grade, and Classwork is 15% of the grade.

89.25

91.55

90.05

i don't know

Multiple Choice

If I have a 85 average for Daily (20%) and a 75% average for Minor (30%), what do I need for a Major average (50%) to have a 83 average overall?

4.12 Weighted Averages Lesson

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