1,199 prompts matching "how many ways can a committee of 4 be chosen from 10 people"
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WAEC Prep: Friction, and the direction in which it acts
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WAEC Prep: Calculating a moment as force times perpendicular distance
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WAEC Prep: A particle in equilibrium on a smooth inclined plane
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WAEC Prep: A knot held in equilibrium by three strings
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Practice: Resolving three forces in two perpendicular directions
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Spot My Mistake: Finding two unknown tensions from three forces in equilibrium
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WAEC Prep: A lamp hanging from two wires, solved by Lami's theorem
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Learn: Finding two unknown forces by Lami's theorem
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WAEC Prep: A random variable, and the values it may take
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Spot My Mistake: Why the probabilities in a distribution must sum to one
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WAEC Prep: Expanding p plus q, all to the power n, as a probability model
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WAEC Prep: The four conditions a binomial situation must satisfy
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WAEC Prep: The Poisson formula, and what lambda stands for
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Quiz: The situations a Poisson distribution models
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Learn: Finding lambda from a stated mean
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WAEC Prep: Why the total area under the normal curve is one
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Quiz: The area under the normal curve, and what it represents
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WAEC Prep: Comparing two values from different normal distributions by z-score
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WAEC Prep: The standard normal distribution, with mean nought and variance one
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Spot My Mistake: Reading a probability from the standard normal table
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