Measures of Central Tendency — Part 1: Ungrouped data and the direct method

• Chapter notes
• Practise questions

Slides

1. 1Measures of Central Tendency, Part 1
2. 2What you will be able to do
3. 3The mean of raw data
4. 4Worked example 1: mean, median and mode
5. 5Quick check: the mean
6. 6The median: arrange first
7. 7Worked example 2: an even number of values
8. 8Quick check: median of six values
9. 9A frequency distribution of single values
10. 10The mode on a bar chart
11. 11Worked example 3: mean, median and mode from a table
12. 12Quick check: mean from a table
13. 13Grouped data and class marks
14. 14The direct method
15. 15Worked example 4: continuous classes
16. 16Worked example 5: discontinuous classes
17. 17Quick check: a class mark
18. 18Summary
19. 19Exam tips: how marks are awarded

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