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# Hazard Rate Function? watch

1. I am trying to do the following question:

The lifetime X (in years) of an item has a rate function . What is the probability that
a) an item survives to age 1?
b) an item’s lifetime is between .5 and 1.5?
c) a 1/2 year old item will survive to age 1?
d) Now suppose the rate has doubled and let Y be the new lifetime with respect to the rate function 2λX(t).
What is P(Y > 1|Y > .5)?

I'm not sure how to tackle this question. In my book it says that the hazard rate function is defined by
2. (Original post by aspiring_doge)
...
3. Thread closed, duplicate. See the other one.

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Updated: February 11, 2016
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