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R language LetYbe a Bernoulli random variable with probability0.8. Simulate 500 times the random variable, and obtain a 95% confidence interval of its standard deviation.

R language

LetYbe a Bernoulli random variable with probability0.8. Simulate 500 times the random variable, and obtain a 95% confidence interval of its standard deviation.

SupposeYrepresents a biased coin with 40% chance of heads. LetZbe the sum of 10 coin tosses. What is the probability that there is between 6 and 8 heads?

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