Deteremine if the function F is a CDF and if so, find the corresponding PDF

F(x)= 0 if x<= 1

((x-1)^2)/(8) if 1<=x<3

1 if 3<=x

i just don't understand how to determine if its a CDF.

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- December 8th 2009, 01:49 PM #1

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- December 8th 2009, 04:07 PM #2

- December 8th 2009, 07:54 PM #3

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- December 9th 2009, 02:58 AM #4