Statistics [Foundation]
This course starts by looking at lists of data. We learn how to find the middle of that data (central tendency) and determine how spread out it is (measures of dispersion). We then see how to summarise this information in the five-number summary and graph it in the box-and-whisker plot.
Thereafter, we progress onto grouped data, where data is grouped by frequency into intervals. We look at how we can do calculations with data in this form and how we can represent it graphically in histograms, frequency polygons and ogives. We also look at how to interpret these graphs.
Finally, we review the content we have covered in this course and then look at past exam questions. The Foundations class will do fewer examples per class and focus more on the core ideas of the topic.
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Lesson 1 60 minutes with Peter on Monday, 29 Aug 2022, 17:00
Data and Central Tendency
We review data and how to calculate the measures of central tendency: the mean, median and mode.
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Lesson 2 60 minutes with Peter on Wednesday, 31 Aug 2022, 17:00
Measures of Dispersion and Quartiles
We learn how to calculate measures of dispersion. such as range, IQR and standard deviation.
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Lesson 3 60 minutes with Peter on Monday, 5 Sep 2022, 17:00
Drawing Box-and-Whisker Plots
We learn how to draw box-and-whisker plots using information from data sets.
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Lesson 4 60 minutes with Peter on Wednesday, 7 Sep 2022, 17:00
Interpreting Box-and-Whisker Plots
We practise how to draw and interpret box-and-whisker plots and calculate simpler measures of dispersion.
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Lesson 5 60 minutes with Peter on Monday, 12 Sep 2022, 17:00
Grouped Data
We learn how to group data into intervals and then do calculations with data in this format.
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Lesson 6 60 minutes with Peter on Wednesday, 14 Sep 2022, 17:00
Histograms and Frequency Polygons
We learn how to draw and interpret histograms and frequency polygons.
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Lesson 7 60 minutes with Peter on Monday, 19 Sep 2022, 17:00
Drawing Ogives
We learn how to draw ogives (cumulative frequency graphs).
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Lesson 8 60 minutes with Peter on Wednesday, 21 Sep 2022, 17:00
Interpreting Ogives
Following the previous lesson, we learn how to interpret ogives (cumulative frequency graphs).
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Lesson 9 60 minutes with Peter on Monday, 26 Sep 2022, 17:00
Consolidation and Review
This lesson is a consolidation and review of all the material covered in the course.
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Lesson 10 60 minutes with Peter on Wednesday, 28 Sep 2022, 17:00
Past Exam Papers on Data Handling
We review past exam paper questions on data handling, focusing on what we covered in this course.