Question: The amount of time, in hours, that a machine functions before breakdown is a continuous random variable with pdf What is the probability that this

The amount of time, in hours, that a machine functions before breakdown is a continuous random variable with pdf

What is the probability that this machine will function between 98 and 145 h before breaking down? What is the probability that it will function less than 160 h?

f(t) ={120 0, -1/120 t20

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