1,334 prompts matching "A word problem about seats in the rows of a hall"
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WAEC Prep: The mean of a binomial distribution as np
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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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WAEC Prep: The variance of a Poisson distribution over two intervals
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WAEC Prep: Using the mean of a Poisson distribution to find a probability
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WAEC Prep: The points of inflexion of the normal curve
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Spot My Mistake: The proportion of a normal distribution within one, two and three standard deviations
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Quiz: The probability in the upper tail of a normal distribution
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WAEC Prep: The position of a point in space written as a vector
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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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WAEC Prep: The unit vector in the direction of a displacement
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Worked Example: Finding the unit vector in the direction of a given vector
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WAEC Prep: The position vector of a point dividing a line in a ratio
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WAEC Prep: The position vector of a point relative to the origin
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Worked Example: The position vector of the midpoint of AB
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Practice: The dot product as the magnitudes times the cosine of the angle
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WAEC Prep: The parameter in the vector equation of a line
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WAEC Prep: Converting the vector equation of a line into Cartesian form
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WAEC Prep: The vector equation of a line through a point in a given direction
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