Twelve trials are conducted in a Bernoulli process in which the probability of success in a given trial is 0.3. If x 5 the number of successes, determine the following:a. E(x) b. σx c. P(x = 3) d. P(2 <= x <= 8) e. P(x >3)

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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Twelve trials are conducted in a Bernoulli process 
in which the probability of success in a given trial is 0.3. 
If x 5 the number of successes, determine the following:
a. E(x) b. σx c. P(x = 3) 
d. P(2 <= x <= 8) e. P(x >3)

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