1,221 prompts matching "Finding a and b when a plus b root 2 equals a given surd"
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WAEC Prep: Friction, and the direction in which it acts
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Practice: Limiting friction, and the greatest value it can reach
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Explain Back: The units of a moment, and why they are newton metres
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WAEC Prep: The resultant moment of a couple and a force together
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WAEC Prep: The triangle of forces and concurrence taken together
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WAEC Prep: The variance of a discrete random variable
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WAEC Prep: A random variable, and the values it may take
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Explain Back: A probability distribution table for a discrete random variable
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Learn: The expectation of a discrete random variable
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WAEC Prep: The probabilities of nought, one and two successes read off an expansion
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Worked Example: Finding a particular term of a binomial expansion
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WAEC Prep: The Poisson formula, and what lambda stands for
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Learn: The standard deviation of a binomial distribution
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Explain Back: Testing whether data are Poisson by comparing mean and variance
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WAEC Prep: The shape and the symmetry of the normal curve
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Learn: The mean, median and mode of a normal distribution
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WAEC Prep: The standard normal distribution, with mean nought and variance one
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WAEC Prep: The probability that a normal variable exceeds the mean by more than one standard deviation
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WAEC Prep: Choosing between a binomial and a Poisson model
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Worked Example: The continuity correction when approximating a discrete distribution
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