Averages vs. Weighted Averages

On the semester final, Joe scored 85, Jill scored 89, and Bill scored a 99.What was the average score for these students? _________

• 91
• 273

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Mary read six books in January, four books in February, and eight books in March.What was the average number of books read each month? __________

• 18
• 6
• 14

Tags

CCSS.5.NBT.B.6

What is the average number of students in each class if there are 250 students in 10 classes?

• 240
• 25

Tags

CCSS.5.NBT.B.6

CCSS.5.NF.B.3

Clayton plays basketball on a team. He has played three
games so far. In the first game, he scored 10 points. In
the second game, he scored 14 points. In the third game,
he scored 6 points. What is Clayton's average points per
game?

• 30
• 12
• 3
• 10

Tags

CCSS.6.NS.B.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

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?

• 25
• 5
• 21

Tags

CCSS.6.NS.B.2

CCSS.6.NS.B.3

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the mean of these numbers?
4,5,5,2,3,3,2,8

• 40
• 24
• 4
• 256

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the mean for these numbers?
5,5,5,5

• 5
• 20
• 15
• 100

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the mean?
4,5,6,7,3,4,10,1

• 40
• 48
• 8
• 32

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

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

Tags

CCSS.5.NBT.B.7

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.

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5