581 prompts matching "A three-set Venn diagram from given numbers"
Real-life Nigeria: Reading the maximum or minimum value off the graph
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Quiz me: Reading a solution off a graph to a stated accuracy
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Worked example: Solving a quadratic graphically by adding a straight line
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WAEC pitfalls: Giving a graphical answer to more accuracy than the scale allows
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Real-life Nigeria: Where a graphical method beats an algebraic one
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Worked example: Testing the vertices of the feasible region
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WAEC pitfalls: Ignoring the non-negativity constraints
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Real-life Nigeria: A production mix problem for a small business
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Quiz me: Building a cumulative frequency table
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WAEC pitfalls: Reading the quartiles off the wrong axis
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Quiz me: Calculating the mean before finding the deviations
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Quiz me: Calculating the angle for each sector of a pie chart
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WAEC pitfalls: Comparing two pie charts of different totals directly
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WAEC pitfalls: Dropping trailing zeros that are in fact significant
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Real-life Nigeria: How many figures an answer ought to carry
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Worked example: The percentage error left by a rounded calculation
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WAEC pitfalls: Giving a percentage error as a negative quantity
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Real-life Nigeria: How errors build up through a multi-step calculation
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Quiz me: Calculating simple interest over a stated period
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Worked example: Compound interest worked year by year and then by formula
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