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June 4th, 2011, 08:24 AM   #1
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density function and probability

Hello, with this density function :
4x si 0<X<=1/2
4-4x si 1/2<X<=1
0 in other case
How much is it P(X>0.6)
Thanks
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June 4th, 2011, 01:27 PM   #2
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Re: density function and probability

Quote:
Originally Posted by algebraico
Hello, with this density function :
4x si 0<X<=1/2
4-4x si 1/2<X<=1
0 in other case
How much is it P(X>0.6)
Thanks
Integral from .6 to 1 of density function (4-4x).
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June 4th, 2011, 03:48 PM   #3
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? (4 - 4x) dx = 4x - 2x + C
Use the fundamental theorem of calculus.
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