639 prompts matching "IGCSE-Style Question: A histogram with unequal class widths"
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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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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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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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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Practice set: The greatest possible error in a rounded measurement
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Worked example: Compound interest worked year by year and then by formula
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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
Act as my SS3 Mathematics tutor. Give me five practice questions on finding the principal,