1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Density function for continuous random variables

  1. Sep 26, 2011 #1
    For the density function for random variable Y:
    f(y) = cy^2 for 0<= y <= 2; 0 elsewhere
    We are asked to find the value of c. I did a definite integral from 0 to 2 of cy^2. I get c = 3/8. Why would the book show an answer of c = 1/8? Is this an error on their part or am I missing something stupid?
     
  2. jcsd
  3. Sep 26, 2011 #2
    Indeed, I also think it's an error in the book.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook