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discrete random variable hw problem

lilmissr

New member
Joined
Oct 11, 2009
Messages
3
-Suppose x is a binomial random number with n=4 and p=2/3. What is the pdf of 2X+1?
*I have no idea how to start this or what the PDF really is

I found out that PDF is probabilty density function but I don't understand how to start this problem. Can someone please explain this concept to me? Thank you!

is the pk (1-p)^n-k formula needed?
 

Subhotosh Khan

Super Moderator
Staff member
Joined
Jun 18, 2007
Messages
18,091
lilmissr said:
-Suppose x is a binomial random number with n=4 and p=2/3. What is the pdf of 2X+1?
*I have no idea how to start this or what the PDF really is

I found out that PDF is probabilty density function but I don't understand how to start this problem. Can someone please explain this concept to me? Thank you!

is the pk (1-p)^n-k formula needed?
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viewtopic.php?f=12&t=36591&p=142381#p142381
 
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