Question: Q(4) The exponential probability function is a continuous probability density function that usually describes the time it takes until an event occurred. The probability density

Q(4) The exponential probability function is a continuous probability density function that usually describes the time it takes until an event occurred. The probability density function is: f(x)=ex,x0 Where is constant. Find the mean () of the exponential density function.( 7 points)

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