probability density function

[themathman]

Im not sure how to even start question viii. I have the e(y) and var(y). They are -1 and 1/3 respectively. How would that help me get the PDF though?

 

[pka]

Im not sure how to even start question viii. I have the e(y) and var(y). They are -1 and 1/3 respectively. How would that help me get the PDF though?

TO:themathman, please post the exact and the entire problem.
You seem to have thrown into the midst of a problem in progress.
If so, how are we expected to know the context and/or the setting of the question?