Core Statistics

Topics

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Sample objectives

What this unit covers

• Classifying statistical data: Organize and categorize statistical information by creating tables, such as tally and two-way tables.
• Interpreting statistical data: 1. Analyze and derive insights from tables and statistical diagrams. 2. Evaluate and contrast data sets through tables and graphs, including comparisons of averages and ranges between two statistical measures. 3. Understand the limitations of making conclusions based on provided data.
• Averages and range: Calculate the mean, median, mode, and range of data presented in a list or frequency table, ensuring that individual data is not grouped. Understand the different purposes for which these measures are used.
• Statistical charts and diagrams: Create and analyze various statistical visual representations, including: (a) bar charts, which encompass composite (stacked) and dual (side-by-side) formats; (b) pie charts; (c) pictograms; (d) stem-and-leaf diagrams that display ordered data along with a key; and (e) basic frequency distributions.
• Scatter diagrams: 1. Create and analyze scatter diagrams, ensuring that plotted points are distinctly marked, such as with small crosses (×). 2. Recognize the meanings of positive, negative, and zero correlation. 3. Draw, interpret, and apply a line of best fit: it should be a single straight line drawn by observation, covering the entire data set, and while it doesn't have to align perfectly with any points, there should be a roughly equal distribution of points on either side of the line throughout its length.
• Extended content only.: Content that is part of the extended curriculum only.