Question: The lifespan (in years) for a certain-made washer (a continuousrandom variable, denoted as X) has probability density functionas:f(x) ={ 8/3 (1 + x)^?2 , 1

The lifespan (in years) for a certain-made washer (a continuousrandom variable, denoted as X) has probability density functionas:f(x) ={ 8/3 (1 + x)^?2 , 1 < x < 7 }{ 0 , otherwise }(a) F 2 answers

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