1,334 prompts matching "Expressing the answer in the form a plus b root c"
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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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WAEC Prep: A three-dimensional vector parallel to another
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WAEC Prep: The magnitude of a vector after multiplication by a scalar
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WAEC Prep: A vector of magnitude one in three dimensions
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WAEC Prep: The magnitude of a two-dimensional vector
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Quiz: The direction of a vector as an angle with the x-axis
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WAEC Prep: Using a unit vector to write a force of given size
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