1,483 prompts matching "WAEC past questions: Why a grouped median is an estimate"
Worked example: The number of elements in a set
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Quiz me: The members common to two sets
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Practice set: The difference of two sets
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Worked example: The formula for the number in a union
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Quiz me: The negation of a statement
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Quiz me: The truth table for negation
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Quiz me: Making a letter the subject by one inverse operation
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Practice set: Joint variation with two variables
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Worked example: Solving by setting each factor to nought
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Quiz me: Writing a quadratic in the form (x + a) squared plus b
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Practice set: Factoring out the leading coefficient first
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Worked example: Substituting into the quadratic formula carefully
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Quiz me: Building a table of values for a quadratic curve
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Practice set: The equation of the line of symmetry of a parabola
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Worked example: Solving a related equation by adding a line to the graph
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Worked example: The perimeter of a segment
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Worked example: Rolling a sector into a cone
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Quiz me: The volume of a cylinder found from its diameter
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Quiz me: The volume of a frustum as a difference of two cones
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Practice set: Finding the height of the removed cone
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