discrete random variable hw problem

[lilmissr]

-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?

 

[Deleted member 4993]

-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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