Answered: 2. Find E(X) and Var(X) if a. P(X = 0)…

2. Find E(X) and Var(X) if a. P(X = 0) = 0.2, P(X = 1) = 0.3, and P(X = 2) = 0.5. b. X is the number of successes in 200 Bernoulli trials each with probability of success 0.7.

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter9: Counting And Probability

Section9.3: Binomial Probability

Problem 2E: If a binomial experiment has probability p success, then the probability of failure is...

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2. Find E(X) and Var(X) if
a. P(X = 0) = 0.2, P(X = 1) = 0.3, and P(X = 2) = 0.5.
b. X is the number of successes in 200 Bernoulli trials each with probability of success
0.7.

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