Probability Inclusion Exclusion

Hi,

Assume hat every time you buy a box of Corn Flakes, you receive one of the pictures of the k players of the Florida Marlins. Over a period of time you buy n >= k boxes of Corn Flakes. Let Ej, j=1,2,3,...,k, denote the event you do not get the jth player's picture.

What is the probability of Ej?

What is the probability of Ej intersect Ei (i is just another player)?

Thanks,

I think once i have those I can use the inclusion-exclusion principle to answer what is the even you do not get at least one picture.