1,326 prompts matching "WAEC question on measures of dispersion"
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WAEC Prep: The four conditions a binomial situation must satisfy
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Practice: The probability of at least one success
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WAEC Prep: The Poisson formula, and what lambda stands for
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Practice: The probability of exactly r events in a Poisson distribution
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Worked Example: The probability of no events at all 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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WAEC Prep: Why the total area under the normal curve is one
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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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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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WAEC Prep: The probability that a normal variable exceeds the mean by more than one standard deviation
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WAEC Prep: Finding the mean or the standard deviation from a given probability
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Quiz: The probability in the upper tail of a normal distribution
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WAEC Prep: When a Poisson distribution approximates a binomial one
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WAEC Prep: Choosing between a binomial and a Poisson model
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WAEC Prep: Writing a two-dimensional vector in i and j form
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Practice: The components of a vector given its magnitude and direction
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