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1) The moment generating function of a random variable X is given. From this, the mean μ is calculated to be 7/3, the variance σ2 is 5/9, and the standard deviation σ is √5/9. The probability mass function of X is then given. 2) A random variable X is defined as the number of the first defective fan inspected. X follows a geometric distribution with probability of success p=0.08. The probability that the 10th fan inspected is the first defective one is calculated to be 0.03777. An expression for the probab

Author
Pei Jing
Language
EN

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