Y is a random variable that is exponentially distributed with parameter k=2. Find E[Y]. Anyone know how to intergrate 2ye^(-2y) w.r.t. y from 0 to infinity? I have no idea on it.
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Originally Posted by winganger Y is a random variable that is exponentially distributed with parameter k=2. Find E[Y]. Anyone know how to intergrate 2ye^(-2y) w.r.t. y from 0 to infinity? I have no idea on it. by parts The final result should be Good luck
Originally Posted by TheEmptySet by parts The final result should be Good luck Thank you. May I ask one more question, that is, what is the value when putting y=infinity into 2ye^(-2y) ?
Originally Posted by winganger Thank you. May I ask one more question, that is, what is the value when putting y=infinity into 2ye^(-2y) ? it is zero...since you can acheive this limt due to L'hopitals rule or simple comparison of rates of increase
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