1,334 prompts matching "Explain permutations and combinations back to me"
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Learn: Finding two unknown forces by Lami's theorem
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WAEC Prep: A probability distribution shown as a bar chart
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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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WAEC Prep: The probability of at most r successes
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WAEC Prep: The most likely number of successes in n trials
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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 probability of at least one event in a Poisson distribution
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WAEC Prep: A Poisson distribution taken over a different length of interval
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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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Worked Example: The probability of no events at all in a Poisson distribution
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WAEC Prep: The expected number of successes in a practical problem
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Practice: The variance of a binomial distribution as npq
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WAEC Prep: The variance of a Poisson distribution over two intervals
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WAEC Prep: The points of inflexion of the normal curve
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WAEC Prep: Comparing two values from different normal distributions by z-score
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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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