740 prompts matching "The modal class read off a histogram (IGCSE/WAEC Revision)"
Quiz me: Building a cumulative frequency table
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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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Spot my mistake: Letting positive and negative deviations cancel
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Real-life Nigeria: Mean deviation set beside standard deviation
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Teach me: When a pie chart suits data better than a bar 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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Practice set: Converting between a pie chart and a bar chart
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Quiz me: Rounding a number to a stated number of significant figures
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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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Practice set: Estimating an answer by rounding each quantity first
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Real-life Nigeria: How many figures an answer ought to carry
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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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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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Word problem: A Nigerian bank savings problem over several years
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Real-life Nigeria: Depreciation as compound interest with a negative rate
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