757 prompts matching "IGCSE Maths Y10: A compound measure word problem — Exam Technique"
Practice set: Estimating quartiles and percentiles from an ogive
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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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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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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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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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Quiz me: Rounding a number to a stated number of significant figures
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Spot my mistake: Rounding twice and drifting away from the true value
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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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WAEC pitfalls: Giving a percentage error as a negative quantity
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Quiz me: Calculating simple interest over a stated period
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WAEC pitfalls: Using the rate as a whole number instead of a decimal
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Practice set: Finding the principal, rate or time from the interest
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