Question: Suppose that a certain type of device has an exponential distribution with a mean life of 500 hours. Let X denote the life of this

Suppose that a certain type of device has an exponential distribution with a mean life of 500 hours. Let X denote the life of this component, then

(a) find P(X> 300).

(b) find P(X< 700| X> 300).

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