1,332 prompts matching "Roots equal in magnitude but opposite in sign"
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WAEC Prep: The binomial expansion of a plus b all to the power n
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Worked Example: Finding a particular term of a binomial expansion
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Learn: Finding the coefficient of a stated power in an expansion
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Practice: Using a binomial expansion to approximate a number
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WAEC Prep: The most likely number of successes in n trials
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WAEC Prep: The four conditions a binomial situation must satisfy
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Explain Back: The binomial probability formula
I have just studied the binomial probability formula in my SS3 Further Mathematics class.
Spot My Mistake: The probability of exactly r successes in n trials
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WAEC Prep: The expected number of successes in a practical problem
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Explain Back: Finding n and p from a given mean and variance
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Learn: Finding lambda from a stated mean
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Explain Back: Testing whether data are Poisson by comparing mean and variance
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WAEC Prep: The points of inflexion of the normal curve
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Explain Back: Converting a value to a z-score
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Spot My Mistake: Reading a probability from the standard normal table
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Worked Example: Finding a value from a given probability by working backwards
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WAEC Prep: Finding the mean or the standard deviation from a given probability
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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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WAEC Prep: Writing a two-dimensional vector in i and j form
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