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13.1 Central Tendencies

13.1 Central Tendencies. Notes. Measure of Central Tendency: describe the center of data. Mean: average add all #’s # of items BEST: NO OUTLIERS. 3, 5, 2, 5, 2, 3, 1 . Median Notes. Median: middle number. Must be least to greatest. If two numbers, add and divide by 2

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13.1 Central Tendencies

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  1. 13.1 Central Tendencies

  2. Notes Measure of Central Tendency: describe the center of data. Mean: average add all #’s # of items BEST: NO OUTLIERS 3, 5, 2, 5, 2, 3, 1

  3. Median Notes Median: middle number. • Must be least to greatest. • If two numbers, add and divide by 2 BEST: NO OUTLIERS; NO BIG GAPS IN MIDDLE OF NUMBERS 3, 8, 2, 3, 8, 3, 10 11, 21, 43, 1, 5, 9

  4. Mode Notes Mode: most occurring numbers. BEST: MANY REPEATED NUMBERS 3, 4, 5, 3, 5, 6, 8, 3, 8

  5. Find Mean 4, 5, 9, 3, 4, 8, 10, 3 10, 11, 4, 30, 45

  6. Find Median 1, 5, 6, 8, 10, 7, 8, 9 5, 8, 9, 1, 2, 5, 7

  7. Find Mode 12, 11, 10, 9, 8, 11, 15 1, 1, 8, 9, 8, 12, 5, 6, 7

  8. Wrap Up Questions/Comments Hw: Workbook pg. 119

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