1,126 prompts matching "IGCSE Additional Maths Y10: How accurate a graphical solution really is — Common"
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Learn: The expectation of a discrete random variable
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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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Explain Back: The binomial probability formula
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Spot My Mistake: The probability of exactly r successes in n trials
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Quiz: The situations a Poisson distribution models
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Worked Example: The probability of no events at all in a Poisson distribution
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Explain Back: Finding n and p from a given mean and variance
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Learn: The standard deviation of a binomial distribution
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Learn: Finding lambda from a stated mean
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Quiz: The standard deviation of a Poisson distribution
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Explain Back: Testing whether data are Poisson by comparing mean and variance
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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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Spot My Mistake: The proportion of a normal distribution within one, two and three standard deviations
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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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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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