The Case of the Corrupt Carnival #7

The picture above shows a spinner that will be displayed horizontally at the county fair at the end of September.  You may choose red or blue. If the spinner lands on the color you choose, you win five tickets.

Is this game fair?  Why or why not?

To try out this spinner and others that will be featured carnival games, click here to download a paper pencil version.

(Comments are moderated, which means they don't show up until approved.)

The Case of the Corrupt Carnival #6

The picture above shows a spinner that will be displayed horizontally at the county fair at the end of September.  This game is a little different than the last spinner game. You get to choose the color to win.  If the spinner lands on the color you choose, you win five tickets.

Is this game fair?  Why or why not?

To try out this spinner and others that will be featured carnival games, click here to download a paper pencil version.
(Comments are moderated, which means they don't show up until approved.)

The Case of the Corrupt Carnival #5

The picture above shows a spinner that will be displayed vertically at the county fair at the end of September.  You get five tickets if the spinner lands on red.  Otherwise you get nothing.

Is this game fair?  Why or why not?

To try out this spinner and others that will be featured carnival games, click here to download a paper pencil version.
(Comments are moderated, which means they don't show up until approved.)

The Case of the Corrupt Carnival #4

Should this game be played at the county fair or is the carnival owner trying to pull a fast one?

1.  Shuffle the four cards and place them in a single pile face down.
2. Guess the order that the four cards will be drawn.
3. You are awarded tickets for the following outcomes:

Outcome	Tickets
Exactly 0 Correct	0 tickets
Exactly 1 Correct	1 ticket
Exactly 2 Correct	1 ticket
Exactly 3 Correct	5 tickets
Exactly 4 Correct	1 ticket

Is this game fair?  Why or why not?

Here is a worksheet that may help you think about your answer.

(Comments are moderated, which means they don't show up until approved.)

The Case of the Corrupt Carnival #3

The third game Math Spies need to evaluate before the county fair begins is another dice game.  This time a player rolls three dice and finds the sum.  If the answer is odd you win five tickets.  If the answer is even you win nothing.

Here is a worksheet that might help you think about this problem. 

Is this game fair?  Why or why not?  (Comments are moderated which means they don't show up until they are approved.)

The Case of the Corrupt Carnival #2

The county fair is due to arrive September 20 and Math Spies have been hired to evaluate the new carnival games.  Click here to evaluate the first game.

The second game is similar.  Roll two dice and this time multiply.  If the answer is odd you win five tickets.  If the answer is even you get nothing.

Is this game fair? Why?
(Comments are moderated, which means they don't show up until approved.)

Here is a worksheet to help you think about this problem.

The Case of the Corrupt Carnival #1

Attention, Math Spies!
The county fair is arriving in a few weeks and it is your job to determine which carnival games are fair and which are not.  Check back each Wednesday for a new game to evaluate.

This first carnival game is straight forward.  Roll two dice.  If the sum is even you get five tickets.  If the answer is odd you get nothing.

Is this game fair? Why?
(Comments are moderated, which means they don't show up until approved.)

Here is a worksheet that may help you think about this problem.