X 1 5 7 Pr(X x) 0.5 0.35 0.1 0.05 a) What is the probability that X is at most 6.7? b) What is the probability that X is at least 6.7? Determine the expected value of X, i.e. mean of X c) Determine the variance of X. d)

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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X
1
5
7
Pr(X x)
0.5
0.35
0.1
0.05
a)
What is the probability that X is at most 6.7?
b)
What is the probability that X is at least 6.7?
Determine the expected value of X, i.e. mean of X
c)
Determine the variance of X.
d)
Transcribed Image Text:X 1 5 7 Pr(X x) 0.5 0.35 0.1 0.05 a) What is the probability that X is at most 6.7? b) What is the probability that X is at least 6.7? Determine the expected value of X, i.e. mean of X c) Determine the variance of X. d)
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