# Measures of Central Tendency

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Mean, Median, Mode, and Range

1. Slide
60 seconds
Measures of Central Tendency 7th Grade Math
Brewer Middle School
2. Word cloud
60 seconds
Type any word that comes to mind when we say, "Measures of Central Tendency"
3. Poll
20 seconds
What is the correct definition of RANGE?
• The average of a data set.
• The highest number minus the lowest number
• The number that occurs the most.
4. Poll
20 seconds
What is the correct definition of MODE?
• The average of a data set.
• The highest number minus the lowest number
• The number that occurs the most.
5. Poll
20 seconds
What is the correct definition of MEAN?
• The average of a data set.
• The highest number minus the lowest number
• The number that occurs the most.
6. Poll
20 seconds
The MEDIAN is the _______ number in a data set...
• Highest Number
• Lowest Number
• The range of the numbers
• The middle number of the data.
7. Poll
20 seconds
When finding the median, what is one of the first things you need to do?
• Multiply all numbers by two.
• Put the numbers in order
• Find the range of the numbers
• Subtract the highest and lowest numbers
8. Poll
20 seconds
What do you call a data set that has three modes?
• Unimodular
• No mode
• Trimodal
• Bimodal
9. Poll
20 seconds
Which type of "mode" is our data set: 0, 5, 2, 2, 3, 4, 7, 1, 9, 8, 11, 11
• Unimodular
• No mode
• Trimodal
• Bimodal
10. Open question
180 seconds
What is the range of the data set? 0, 5, 2, 2, 3, 4, 7, 1, 9, 8, 11, 11
11. Open question
210 seconds
What is the median of the data set? 0, 5, 2, 2, 3, 4, 7, 1, 9, 8, 11, 11
12. Open question
300 seconds
What is the average of the data set? 0, 5, 2, 2, 3, 4, 7, 1, 9, 8, 11, 11
13. Drawings
270 seconds
Brain Break: Draw a beach themed picture.
14. Open question
240 seconds
Find the mean of the following: 11, 14, 10, 11, 21
15. Open question
240 seconds
Find the range of the following: 11, 14, 10, 11, 21
16. Open question
240 seconds
Find the mode of the following: 11, 14, 10, 11, 21
17. Open question
240 seconds
Find the median of the following: 11, 14, 10, 11, 21
18. Drawings
660 seconds
Using the draw feature, find the mean, median, mode, and range of the data set provided. 91 , 91 , 78 , 78 , 90 , 85 , 74 , 81 , 75