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A common probability distribution function is the exponential, which is often used to model failure rates for products, for example batteries. It is given by:p(x)=(lambda*e)^(-lambda*x), over all positive real numbers (0 to infinity)In the case where lambda = 1, what is the mean value of for the exponential distribution?(Hint – Use the expectation operator and you may need to review “integration by parts” to solve this)What is the cumulative distribution function P(x) for this p(x)?What is the probability that x will lie between 2 and 3 for this p(x)?

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