1. (20%) Let X be a random variable with the Poisson distribution with parameter of λ. Show that the mean and variance of X are both λ.

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2024/05/03

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2. Traveling between bwo areas in a city via shuttle bus is believed to take 18 minutes with a standard deviation of 5 minutes. During a period of time, the shuttle bus operated 30 times between this route. What is the probability that the average transport time was more than 25 minutes? Do you need to assume a certain prob

1. (20%) Let X be a random variable with the Poisson distribution with parameter of λ. Show that the mean and variance of X are both λ.

詳解 (共 1 筆)

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