1,326 prompts matching "WAEC question on measures of dispersion"
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WAEC Prep: The three unknowns a rigid body problem usually carries
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WAEC Prep: Calculating a moment as force times perpendicular distance
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Learn: The algebraic sum of moments when the senses differ
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Quiz: The point about which the total moment of a set of forces vanishes
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WAEC Prep: A knot held in equilibrium by three strings
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WAEC Prep: A lamp hanging from two wires, solved by Lami's theorem
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Worked Example: Matching each force to the sine of the angle opposite it
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WAEC Prep: A random variable, and the values it may take
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WAEC Prep: Expanding p plus q, all to the power n, as a probability model
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Spot My Mistake: The probability of exactly r successes in n trials
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WAEC Prep: The probability that a normal variable lies below a given value
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WAEC Prep: The zero vector, and what it means
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WAEC Prep: Two vectors that are equal but drawn in different places
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Practice: The magnitude of the sum of two vectors
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WAEC Prep: A unit vector, and what makes it a unit
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Practice: The dot product as the magnitudes times the cosine of the angle
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Explain Back: The dot product of two perpendicular vectors
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WAEC Prep: Showing a triangle is right-angled using the dot product
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WAEC Prep: Finding the angle between two vectors from their dot product
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WAEC Prep: Three forces in equilibrium written as vectors
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