The McGraw Hill 6th grade book series of games.
Instructions:
Find three coins of different sizes (e.g. quarter, nickle, penny). Flip each and record the head/tail value. Look up the Sequence A . Flip the three coins and do a look up in the Sequence B . Combine them and rank the mean, median, and mode from smallest to largest . Your opponent may challenge you. Look up the answer in the table on the next page. If you are right and your opponent didn't challenge you, you get a point. If you are right and your opponent did challenge you, you get two points. If you are wrong and your opponent challenged you, your opponent gets a point. If you are wrong and your opponent didn't challenge you, nobody gets a point. Your opponent plays next.
 vals[0] 
OrderAverages
Coin tosses (largest to smallest): TTT TTH THT THH HTT HTH HHT HHH
Sequence A 0, 1, 3, -3, 1000 0, -1, -2, 3, 0 1, -4, 0, 3, -100 -3, 2, 3, 3, 100 3, 2, -2, -1, 100 2, 3, 1, 2, -1000 3, -3, -1, 3, 1000 2, 1, -1, -1, -100
Sequence B 0, -1, -1, -3 3, -2, -2, 0 -4, -1, 2, -3 -2, -1, 1, -2 2, 3, -1, -4 -3, 0, -1, -2 1, 3, -1, 0 -4, -2, 1, 3

On a different page so the players have to turn to it...