1,334 prompts matching "Expressing a rationalised answer in the form a root b over c"
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WAEC Prep: The probabilities of nought, one and two successes read off an expansion
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WAEC Prep: The probability of at most r successes
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Quiz: The situations a Poisson distribution models
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WAEC Prep: Why the mean and the variance of a Poisson distribution are equal
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Quiz: The standard deviation of a Poisson distribution
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WAEC Prep: Why the total area under the normal curve is one
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WAEC Prep: The shape and the symmetry of the normal curve
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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 z-score of a value that lies below the mean
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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: The probability that a normal variable lies below a given value
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WAEC Prep: When a Poisson distribution approximates a binomial one
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WAEC Prep: A question whose wording hides which distribution is meant
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WAEC Prep: Choosing between a binomial and a Poisson model
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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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Quiz: Writing a two-dimensional vector as a column
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Spot My Mistake: Drawing a vector as a directed line segment
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