Gamma CDF and PDF
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Let X ~ gamma (60,0.5) and I want to calculate P(X < 5) for example. How can I use gampdf and gamcdf for calculating this? I calculated this manually and there is a diffrence between the answers so I want to make sure I am typing every thing correctly.
Thanks!
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Wayne King
2013-5-20
The probability that the random variable following that probability law is less than 5 is the integral of the CDF from 0 to 5
gamcdf(5,60,0.5)
I get exactly the same answer in R by the way with
> pgamma(5,shape=60,scale = 1/2)
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