Exponential Distribution | Property of Expectation

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Useful property of the expected value of an exponential random variable.
  1. Mancinelli's Math Lab
  2. calculus
  3. probability
  4. math
  5. distribution
  6. Exponential Distribution
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Hey, I really appreciate these videos, and I'm excited to see someone in the act of a career change like I'm trying to do. I also love that you go slow in your explanations. I'm realizing that that's really what you have to do before you can develop speed with these problems. And as I watch you think aloud through these, I notice things.
I noticed, for example, in this example, that doing a substitution of u=x-a after setting up the integral basically turns it into the E(X) integral, which of course results in 1/lambda. Keep up these videos, man!

johnbutler
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Hey Mancinelli, I think you are doing a good job explaining these SOA questions. Can you do a video on number 238, much appreciate it. Keep up the good work and good luck on exam p in the coming days.

noyar
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so it also holds true that E(X|x>a) =E(x) +a?

drowsy_mouse
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the end got chopped off, what is the final answer? Thank you

oestera