U4T1 Averages
Presentation
•
Biology
•
12th Grade
•
Practice Problem
•
Hard
Christine Goida
Used 5+ times
FREE Resource
5 Slides • 4 Questions
1
Averages
2
Find the sum of the values.
Count the number of values.
Divide the sum by the number of values.
Steps for Finding the Average
3
Multiple Select
What information do you need to find an average?
Choose TWO correct answers!
total sum
number of items
least common denominator
4
Example Problem
5
Math Response
average=number of valuessum of all 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)
6
Math Response
average=number of valuessum of all 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)
7
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......
8
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
9
Great work today!
Averages
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