Z + The probability generating function for a random variable X is given by: 1 1 1 25 + + 4 8 gy(z)= z? -220 Find: 1. E[3x2] 2. P(X > 17 [X > 8) 3. E[[X-251) 4. Second moment of X. Maximum size for new files: 150MB, maximum attachments: 1

匿名用户最后更新于 2021-12-01 19:08 数学类Mathematics

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Z + The probability generating function for a random variable X is given by: 1 1 1 25 + + 4 8 gy(z)= z? -220 Find: 1. E[3x2] 2. P(X &gt; 17 [X &gt; 8) 3. E[[X-251) 4. Second moment of X. Maximum size for new files: 150MB, maximum attachments: 1

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Z + The probability generating function for a random variable X is given by: 1 1 1 25 + + 4 8 gy(z)= z? -220 Find: 1. E[3x2] 2. P(X > 17 [X > 8) 3. E[[X-251) 4. Second moment of X. Maximum size for new files: 150MB, maximum attachments: 1