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Statistics – Central Tendency & Dispersion (Video)

Updated: January 2, 2026 by FlashIsaac

All the Tricks and Techniques you need to Master Statistics In Mathematics. Understand Mean, Median, Mode, Range, Mean Deviation, Variance and Standard Deviation.

Requirements:

  • Posses basic Mathematical skills
  • Posses basic English Skills

Who Is This Video For?

  • Students Interested in Mathematics
  • People who wish to understand Statistics
  • Students Preparing for School Examination
  • Candidates preparing for Scholarships
  • Jamb, Waec and Neco Candidates

Watch Statistics Videos

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Statistic Topics

This Video Covers the Following Topics Among Others…

Measure of Central Tendency

  • 00:25 – Meaning of Statistics
  • 01:00 – Data Meaning and Examples
  • 02:00 – Measure of Central Tendency
  • 02:21 – Arithmetic Mean
  • 03:18 – Median
  • 04:13 – Mode
  • 05:38 – Solving Mean of Ungrouped Data
  • 09:15- Mean of Numbers Mixed with Variables
  • 13:55 – Finding Mean of Consecutive Numbers
  • 19:25 – Calculating Mean of Grouped Data
  • 22:58 – Mean of Grouped Data With Class Boundary
  • 27:26 – Word Problems Leading to Arithmetic Mean
  • 36:26 – Median of Ungrouped Data
  • 38:36- Median of Grouped Data
  • 41:23 – Median of Grouped Data With Class Interval
  • 47:30 – Mode of Grouped Data
  • 47:47 – Mode of Ungrouped Data
  • 48:00 – Mode of Grouped Data with Class Boundary

Measure Of Dispersion

  • 01:28 – Measure of Dispersion
  • 02:09 – Range, Formula and Characteristics
  • 03:26 – Mean Deviation, Formula and Character
  • 05:20 – Variance, Formula And Character
  • 06:06 – Standard Deviation
  • 07:25 – Solving Range of Ungrouped Data
  • 15:52 – Finding Range of Grouped Data
  • 17:25 – Mean Deviation of Ungrouped Data
  • 21:58 – Mean Deviation of Grouped Data
  • 35:03 – Variance and Standard Deviation
  • 37:07 – Variance and Deviation of Ungrouped Data
  • 39:48 – Standard Deviation of Grouped Data
  • 44:56 – Variance of Grouped Data
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