1,293 prompts matching "Proving a surd statement is true or false"
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Spot My Mistake: The moment of a force whose line of action is not perpendicular
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Quiz: The point about which the total moment of a set of forces vanishes
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Explain Back: A probability distribution table for a discrete random variable
I have just studied a probability distribution table for a discrete random variable in my
WAEC Prep: The Poisson formula, and what lambda stands for
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Worked Example: The probability of no events at all in 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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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: A question whose wording hides which distribution is meant
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Spot My Mistake: When the normal distribution may approximate the binomial
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Worked Example: The continuity correction when approximating a discrete distribution
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Quiz: Reading the wording of a question to decide which distribution applies
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Worked Example: The distance between two points in three dimensions
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Quiz: The direction of a vector as an angle with the x-axis
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WAEC Prep: The unit vector in the direction of a displacement
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WAEC Prep: The distance between two points from their position vectors
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