Reply
Fri 27 Apr, 2012 10:46 am
Hi, I am having real trouble getting my head around p.m.f. My question is:
Give one reason why the following function cannot be a probability mass function:
p(x) = 1
9(x−1), x= 2,3,4,5.
@hotfuss28,
Could you please express the p.m.f. , you want to know about , more explicitly
@hotfuss28,
Basing on what I can make of the function you gave, a ready answer that I can
provide is that the function you mentioned is not a probability mass function
because the values it can take , within the domain of definition , do not add up to give 1
Stumble It!
Tweet This
Bookmark on Delicious
Share on Facebook
Share on MySpace