647 prompts matching "IGCSE-style question: Solving a linear inequality with brackets"
Worked example: Testing the vertices of the feasible region
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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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Explain back: Plotting a cumulative frequency curve at the upper class boundaries
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Worked example: Estimating the median from a cumulative frequency curve
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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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Explain back: Why the absolute value is taken in mean deviation
I have just studied why the absolute value is taken in mean deviation in my SS3 Mathematic
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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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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Practice set: Converting between a pie chart and a bar chart
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Explain back: Decimal places and significant figures distinguished
I have just studied decimal places and significant figures distinguished in my SS3 Mathema
Worked example: Rounding a number whose leading digits are zeros
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WAEC pitfalls: Dropping trailing zeros that are in fact significant
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Practice set: Estimating an answer by rounding each quantity first
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Explain back: Why percentage error is more useful than absolute error
I have just studied why percentage error is more useful than absolute error in my SS3 Math