1,332 prompts matching "Explain standard deviation back to me"
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WAEC Prep: A random variable, and the values it may take
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Learn: The expectation of a discrete random variable
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Learn: Finding the coefficient of a stated power in an expansion
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WAEC Prep: The four conditions a binomial situation must satisfy
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Spot My Mistake: The probability of exactly r successes in n trials
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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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Quiz: The situations a Poisson distribution models
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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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Quiz: The area under the normal curve, and what it represents
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WAEC Prep: The probability that a normal variable lies below a given value
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Learn: The probability that a normal variable lies between two values
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Quiz: The probability in the upper tail of a normal distribution
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Practice: Using the normal tables when the z-score is negative
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WAEC Prep: Choosing between a binomial and a Poisson model
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Spot My Mistake: When the normal distribution may approximate the binomial
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WAEC Prep: The dot product worked out from components
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Practice: Deciding whether a point lies on a given line
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WAEC Prep: The imaginary unit i, and why i squared is minus one
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