749 prompts matching "Practice: Calculating the frequency density for each class"
WAEC pitfalls: Ignoring an area that lies below the axis
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Worked example: Finding the magnitude and direction of a vector
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WAEC pitfalls: Dropping the negative sign when reversing a vector
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Worked example: Finding the translation that maps one shape onto another
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Worked example: Finding the mirror line from an object and its image
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Worked example: Finding the angle of rotation from an object and its image
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Worked example: Finding the centre of enlargement from object and image
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Worked example: Verifying an inverse by multiplying back to the identity
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Worked example: Solving a 2 by 2 system by the matrix method
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WAEC pitfalls: Writing the coefficients out of order in the matrix
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WAEC pitfalls: Joining the plotted points of a curve with straight lines
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WAEC pitfalls: Giving a graphical answer to more accuracy than the scale allows
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Worked example: Testing the vertices of the feasible region
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WAEC pitfalls: Ignoring the non-negativity constraints
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WAEC pitfalls: Reading the quartiles off the wrong axis
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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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Worked example: Reading a quantity from a pie chart given the total
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Worked example: The percentage error left by a rounded calculation
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WAEC pitfalls: Using the rate as a whole number instead of a decimal
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