## Taking Classes

Given certain parameters, how many possible students can take math and English, science and English, and math and science?

## Too Many Dogs

Determine how many dogs Elizabeth owns.

## Getting Free

How should a prisoner arrange 200 balls so that the prisoner has the greatest possibility of going free?

## Matching Socks

Determine the number of socks you should pull out in order to guarantee that you will have a pair.

## Mystery Envelopes

Knowing what’s in one envelope, should you keep your envelope or switch and ask for the other one?

## Getting on Base

How many hits would you expect your favorite baseball player to have in the next 15 at-bats?

## Hitting the Bulls-eye

How many times would you expect to throw the dart until you hit the bulls-eye?

## Bonus Free Throws

Given Rachel’s free throw percentage, will she send the game into overtime?

## Unusual Occurence

Can a fair coin that is tossed ten times land on heads all ten times?

## Ground Zero

Consider events with probabilities equal to 0.