1,288 prompts matching "WAEC exam question: symmetric functions of roots"
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Practice: The probability of at least one success
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Practice: The probability of exactly r events in a Poisson distribution
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Practice: The variance of a binomial distribution as npq
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Learn: The standard deviation of a binomial distribution
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Quiz: The standard deviation of a Poisson distribution
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Learn: The mean, median and mode of a normal distribution
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Spot My Mistake: The proportion of a normal distribution within one, two and three standard deviations
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Worked Example: Finding a value from a given probability by working backwards
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Quiz: The probability in the upper tail of a normal distribution
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Worked Example: The continuity correction when approximating a discrete distribution
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Practice: The components of a vector given its magnitude and direction
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Learn: The coordinates of a point in three dimensions
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Quiz: The direction cosines of a vector in three dimensions
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Worked Example: The distance between two points in three dimensions
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Learn: The magnitude of a three-dimensional vector
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Quiz: The direction of a vector as an angle with the x-axis
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Practice: The magnitude of the sum of two vectors
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Practice: A vector of stated magnitude in a given direction
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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Practice: The dot product as the magnitudes times the cosine of the angle
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