1,334 prompts matching "Indices in a WAEC-style savings context question"
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Learn: The algebraic sum of moments when the senses differ
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Spot My Mistake: When Lami's theorem may be used, and when it may not
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Learn: The expectation of a discrete random variable
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Practice: The probability of at least one success
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Quiz: The situations a Poisson distribution models
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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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Quiz: The area under the normal curve, and what it represents
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Learn: The probability that a normal variable lies between two values
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Practice: The components of a vector given its magnitude and direction
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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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Learn: The unit vectors i, j and k
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Spot My Mistake: The vector from A to B as the difference of two position vectors
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Worked Example: The triangle law of vector addition
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Learn: The angle between a vector and one of the axes
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Worked Example: The powers of i, and the cycle they follow
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Quiz: The product of a complex number and its conjugate
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Practice: The sum of a complex number and its conjugate
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