[cinderellax]

4. Let X be the number of sixes obtained when a fair die is thrown 4 times.
(a) What is the distribution of X? Give the probability mass function.
(b) Write down a table giving the numerical values (accurate to four decimal places) of
P(X = x) for x = 0; 1; 2; 3; 4.
(c) Use the table derived in part (b) to numerically evaluate E(X) and E(X2) (accurate
to about four decimal places). Use the formula Var(X) = E(X2) 􀀀 (E(X))2 to nd
Var(X).

i need the answer to 4a)

but if you have ocd....

[Coursework.info]

It's been a while since you posted and nobody's replied yet...maybe you should check out Coursework.Info, TSR's sister site. It has the largest library of essays in the UK.

They've got over 160,000+ essays, projects, assignments, coursework etc.. all written by GCSE, A Level and Uni students. You get access either by publishing some of your own work, or paying £4.99 for a month's access. Both ways give you unlimited access to all of the essays.

All their documents are submitted to Turnitin anti-plagiarism software, so it can't be misused, and the site’s used by hundreds of thousands of UK teachers and students.

Hopefully you'll find it useful

[cinderellax]

shameless bump