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Measures of central tendency
- 6. Mean the of a set of the data average 3, 4, 4, 10, 15, 16, 18 70 7 = 10 Just add and divide
- 7. Median the number middle 3, 4, 4, , 15, 16, 18 10 10 is the median Justfind the middle
- 8. Median numbers not in sequence must be ordered 6, 12, 2, 6, 4 2, 4, , 6, 12 6 6 is the median
- 9. Mode the number that repeats the most 3, 4, 4, 10, 15, 16, 18 4 is the mode The number that appears the most
- 10. Mode there may be more than one mode 3, 3, 4, 4, 4, 7, 9, 9, 9 4 & 9 are the modes
- 11. Range the difference between the and least greatest , 4, 4, 10, 15, 16, 3 18 18 – 3 = 15 Just subtract largest and smallest
- 12. Find the all four measures of central tendency below. 1, 1, 3, 7, 11, 13, 20 Mode 56 7 = 8 Median Mean 20 – 1 = 19 Practice Range