757 prompts matching "IGCSE Maths Y10: A cumulative frequency question about test marks — Exam Techniq"
Practice set: Solving simultaneous equations graphically
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Teach me: What linear programming sets out to optimise
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Quiz me: Writing inequalities from a described set of constraints
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Spot my mistake: Shading the wrong side of a boundary line
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WAEC pitfalls: Ignoring the non-negativity constraints
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Practice set: Finding the maximum of an objective function
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WAEC pitfalls: Reading the quartiles off the wrong axis
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Practice set: Estimating quartiles and percentiles from an ogive
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Teach me: Mean deviation, and what it measures
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Quiz me: Calculating the mean before finding the deviations
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Spot my mistake: Letting positive and negative deviations cancel
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Worked example: The mean deviation of an ungrouped data set
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WAEC pitfalls: Dividing by the wrong number of items
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Practice set: The mean deviation of grouped data
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Exam timing: A timed set of mean deviation calculations
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Teach me: When a pie chart suits data better than a bar chart
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Quiz me: Calculating the angle for each sector of a pie chart
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Spot my mistake: Drawing sector angles that do not total 360 degrees
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Worked example: Reading a quantity from a pie chart given the total
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WAEC pitfalls: Comparing two pie charts of different totals directly
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