Question: A Twitter user expects to be asked for human verification every 30 minutes. Assume that the random variable is Poisson. Compute the expectation and variance

A Twitter user expects to be asked for human verification every 30 minutes. Assume that the random variable is Poisson. Compute the expectation and variance of the random variable X. What is the probability that, in 24 hours, the user is asked for human verification 80 times

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