Answer to question 4

There are three outcomes, 0, 1, and 2.

There are 1 + 2 + 1 = 4 tickets, so N is 4.

There is K=1 ticket with a 0, so the chance of drawing a 0 is K/N = 1/4 = 25%.

There are K=2 tickets with a 1, so the chance of drawing a 1 is 2/4 = 50%.

There is one ticket with a 2, so the chance of drawing a 2 is 25%.