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# Day 3 measures of central tendency

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### Day 3 measures of central tendency

1. 1. Measures of Central Tendency.notebook March 07, 2013 AIM: Measures of Central Tendency Do Now 1
2. 2. Measures of Central Tendency.notebook March 07, 2013 2
3. 3. Measures of Central Tendency.notebook March 07, 2013 3
4. 4. Measures of Central Tendency.notebook March 07, 2013 Anticipatory Set Estimate the average of the following data set without  calculating:  {4, 7, 8, 12, 16} 4
5. 5. Measures of Central Tendency.notebook March 07, 2013 Task:  Create a balanced seesaw: USE ONE BLOCK   0 1 2 3 4 5 6 7 8 9 10 11 12 5
6. 6. Measures of Central Tendency.notebook March 07, 2013 Task:  Create a balanced seesaw: USE ONE BLOCK   0 1 2 3 4 5 6 7 8 9 10 11 12 6
7. 7. Measures of Central Tendency.notebook March 07, 2013 Task:  Create a balanced seesaw: USE TWO BLOCKS   0 1 2 3 4 5 6 7 8 9 10 11 12 7
8. 8. Measures of Central Tendency.notebook March 07, 2013 Question: How did you determine where to place the block to balance the seesaw? 8
9. 9. Measures of Central Tendency.notebook March 07, 2013 9
10. 10. Measures of Central Tendency.notebook March 07, 2013 Find the mean, median, mode and range of the following data sets. 1.)  6, 9, 13, 6, 6 Mean =____ Median =______ Mode =______ Range =______ 10
11. 11. Measures of Central Tendency.notebook March 07, 2013 2.)  2, 1, 8, 0, 2, 4, 3, 4 Mean =____ Median =______ Mode =______ Range =______ 11
12. 12. Measures of Central Tendency.notebook March 07, 2013 3.)  4, 7, 8, 2, 1, 2, 4, 2 Mean =____ Median =______ Mode =______ Range =______ 12
13. 13. Measures of Central Tendency.notebook March 07, 2013 4.)  1, 6, 11, 3, 7, 2 Mean =____ Median =______ Mode =______ Range =______ 13
14. 14. Measures of Central Tendency.notebook March 07, 2013 Deviations from the  Data Values Mean Mean 1 3 3 7 8 9 11 What is the sum of the deviations? 14
15. 15. Measures of Central Tendency.notebook March 07, 2013 15
16. 16. Measures of Central Tendency.notebook March 07, 2013 Critical Questions: 1.)  Does the mean have to be a member of the  data set? 2.)  What is the sum of the signed distances of the  numbers from the mean? 16
17. 17. Measures of Central Tendency.notebook March 07, 2013 Homework Finish Class Notes 17