695 prompts matching "Negating a statement containing all or some"
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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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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Word problem: Presenting a Nigerian household budget as a pie chart
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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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Real-life Nigeria: Choosing the right chart for a given set of data
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Word problem: Giving a measured Nigerian market quantity to sensible accuracy
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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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Teach me: Absolute error and percentage error defined
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Quiz me: Calculating percentage error from a measured and a true value
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Word problem: The error in a described market measurement
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Worked example: The percentage error left by a rounded calculation
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Real-life Nigeria: How errors build up through a multi-step calculation
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Teach me: The simple interest formula and the symbols in it
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Spot my mistake: Applying the simple interest formula to a compound problem
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Word problem: A Nigerian bank savings problem over several years
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Worked example: Compound interest worked year by year and then by formula
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