Assume that a procedure yields a binomial distribution with n=7 trials and a probability of success of p = 0.80. Use binomial probability table to find the probability that the number of successes x is exactly 2. Click on the icon to view the binomial probabilities table. P(2) = (Round to three decimal places as needed.)
Assume that a procedure yields a binomial distribution with n=7 trials and a probability of success of p = 0.80. Use binomial probability table to find the probability that the number of successes x is exactly 2. Click on the icon to view the binomial probabilities table. P(2) = (Round to three decimal places as needed.)
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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Transcribed Image Text:Assume that a procedure yields a binomial distribution with n =7 trials and a probability of success of p = 0.80. Use a binomial probability table to find the probability that the number of successes x is exactly 2.
Click on the icon to view the binomial probabilities table.
P(2) = (Round to three decimal places as needed.)
Expert Solution
Step 1
Given that
n=7 , p=0.80 , q=1-p=1-0.80=0.20
X~Binomial(n=7,p=0.80)
Probability mass function of X is
P(X=x)=nCxpxqn-x , x=0,1,2,3,_____
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