1,334 prompts matching "Teach me mean, variance and standard deviation"
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WAEC Prep: Setting out Cramer's rule for three simultaneous equations
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WAEC Prep: The inverse of a 2 by 2 matrix as one over the determinant times the adjoint
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WAEC Prep: How long the inverse of a 3 by 3 matrix takes, and how to shorten it
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WAEC Prep: The inverse of a 3 by 3 matrix from its adjoint and its determinant
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WAEC Prep: Reading the solution off the product of the inverse and the constants
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WAEC Prep: When the matrix method is worth the work for three unknowns
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WAEC Prep: Mass, and how it differs from weight
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WAEC Prep: The difference between a kilogram and a kilogram weight
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WAEC Prep: The newton, and how it is defined
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WAEC Prep: The resultant of two forces acting at the same point
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WAEC Prep: Resolving a force into horizontal and vertical components
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WAEC Prep: Friction, and the direction in which it acts
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WAEC Prep: The moment of a force about the foot of a pole
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WAEC Prep: The moment of a weight about a hinge
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WAEC Prep: Calculating a moment as force times perpendicular distance
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WAEC Prep: The total moment of two forces about the same point
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WAEC Prep: The triangle of forces and concurrence taken together
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WAEC Prep: The statement of Lami's theorem
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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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