Hey guys, thanks for the help last time.

I had another one that I'm not really sure how to start out.

Suppose that a bag contains six slips of paper: one with the number 1 written on it, two with the number 2, and three with the number 3. What is the expected value and variance of the number draw if one slip is selected at random from the bag?

I already have:

S = {1, 2,2,3,3,3}

Probability of selecting a specific number slip.

PR[1] = 1/6

PR[2] = 1/3

PR[3] = ½

I was thinking a good way to start this was:

u = E[x] = 1(1/6) + 2(1/3) + 3(1/3) +4(1/2)+5(1/2)+ 6(1/2) to get the expected value but i wasn't sure if this is correct. Any ideas?

Thanks