apt4Stats: PowerPoint for GCSE Statistics (Analysing Data) on OTHER MEANS - WEIGHTED & GEOMETRIC

PowerPoint Presentation on Other Means – Weighted & Geometric (12 slides): Explains how to find the weighted and geometric means of data. It has been written by a highly experienced teacher (of 25+ years), senior examiner and reviser for Maths and Stats examinations. It includes:

Lesson objectives
Step-by-step explanations of the subject matter
Examples to aid understanding
Questions to check understanding
Answers to questions, with explanations
Suggestions regarding which topic(s) should be moved on to next.

It is 1 of a set of 14 PowerPoint Presentations on ‘Analysing Data’ that APT Initiatives has published for GCSE Statistics. The content of this PowerPoint is also relevant to the ‘Statistics’ section of the GCSE Maths specifications and included in APT’s PowerPoints for GCSE Maths.

The full set of set of 14 PowerPoints (238 slides excluding Title Pages) covers the following topics relating to ‘Analysing Data’:

01 Averages – Mode (19 slides).
02 Averages – Median (19 slides).
03 Averages – Mean (19 slides).
04 Other Means – Weighted & Geometric(12 slides).
05 Measures of Dispersion – Range (16 slides).
06 Measures of Dispersion – Interquartile Range (20 slides).
07 Cumulative Frequency (25 slides).
08 Box (and Whisker) Plots (11 slides).
09 Distributions, Variance & Standard Deviation (18 slides).
10 Skewness Coefficients (11 slides).
11 Time Series and Moving Averages (25 slides).
12 Crude and Standardised Rates (11 slides).
13 Index Numbers (22 slides).
14 Quality Assurance (10 slides).

These PowerPoints are one of 4 sets of PowerPoint Presentations that APT Initiatives Ltd has published to support teachers and students of GCSE Statistics. Other sets concern:

Collecting Data
Representing Data
Probability

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