Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Question about gamma distribution

  1. Feb 10, 2005 #1
    so I dont even know where to start and how to approach this. suppose that a set of measurements y1, y2,.....y100 were taken from a gamma pdf where E(y)= 1.5, and var(y) = .75. how many y(i's) would I expect to find in the interval (1.0, 2.5).

    I have absolutely no idea where to start given my information.

    so I know that gamma pdf = lamda^r / (r - 1)! * ye^(-lamda*y), for y > 0.

    and i know the expected value formula and variance formula, e(y) = r/lamda and variance(y) = r/lamda^2.

    but so what? what do I do?
  2. jcsd
  3. Feb 13, 2005 #2

    -- AI
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Similar Threads for Question gamma distribution Date
B What question should you ask? Monday at 10:14 PM
I Question about simplifying Sigma notation Feb 11, 2018
I Shopping List Game: Probability Question Dec 10, 2017
I A simple question about probability theory Aug 2, 2017
Trivial Question on Gamma Distribution Function Sep 11, 2011