U4T1 Averages

Averages

1. Find the sum of the values.

2. Count the number of values​.

3. Divide the sum by the number of values.

Steps for Finding the Average

Multiple Select

What information do you need to find an average?

Choose TWO correct answers!

• total sum

• number of items

• least common denominator

Example Problem

Math Response

$$average=\frac{sum\ of\ all\ values}{number\ of\ values}$$

What is the average number of bumps on the clouds shown in the image?

Round your answer to the nearest tenth!

(Example: if you get 1.25, round it to 1.3)

Type answer here

Correct Answer: 6.3

Deg^°

Rad

Math Response

$$average=\frac{sum\ of\ all\ values}{number\ of\ values}$$

What is the average number of bumps on the clouds shown in the image?

Round your answer to the nearest tenth!

(Example: if you get 1.75, round it to 1.8)

Type answer here

Correct Answer: 6.8

Deg^°

Rad

Ready for a challenge??

José took a survey of his classmates to find out how many pets each of them had. He learned the following:

• 4 students have no pets

• 2 students have just 1 cat or dog

• 3 students have both a cat and a dog (2 pets)

• 1 student has 7 rabbits

How would you calculate the average for this?

Here comes the question......

Multiple Choice

José took a survey of his classmates to find out how many pets each of them had. He learned the following:

• 4 students have no pets

• 2 students have just 1 cat or dog

• 3 students have both a cat and a dog (2 pets)

• 1 student has 7 rabbits

What is the average number of pets each student has?

• 1.5

• 2.0

• 2.6

Great work today!