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...

 vals[0] 
OrderAverages
Order Averages 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
0, -1, -1, -3 median (0), mode (0), mean (110.67) median (-1), mean (-0.56), mode (0) mean (-11.67), median (-1), mode (0) median (0), mode (0), mean (11.11) median (-1), mode (0), mean (10.78) mean (-110.78), median (0), mode (0) median (-1), mode (0), mean (110.78) mean (-11.56), median (-1), mode (0)
3, -2, -2, 0 median (0), mode (3), mean (111.11) mean (-0.11), median (0), mode (3) mean (-11.22), median (0), mode (3) median (2), mode (3), mean (11.56) median (0), mode (3), mean (11.22) mean (-110.33), median (1), mode (3) median (0), mode (3), mean (111.22) mean (-11.11), median (-1), mode (3)
-4, -1, 2, -3 mode (-4), median (0), mean (110.56) mode (-4), median (-1), mean (-0.67) mean (-11.78), mode (-4), median (-1) mode (-4), median (2), mean (11) mode (-4), median (-1), mean (10.67) mean (-110.89), mode (-4), median (1) mode (-4), median (-1), mean (110.67) mean (-11.67), mode (-4), median (-1)
-2, -1, 1, -2 mode (-2), median (0), mean (110.78) mode (-2), median (-1), mean (-0.44) mean (-11.56), mode (-2), median (-1) mode (-2), median (1), mean (11.22) mode (-2), median (-1), mean (10.89) mean (-110.67), mode (-2), median (1) mode (-2), median (-1), mean (110.89) mean (-11.44), mode (-2), median (-1)
2, 3, -1, -4 median (1), mode (2), mean (111.22) mean (0), median (0), mode (2) mean (-11.11), median (0), mode (2) median (2), mode (2), mean (11.67) median (2), mode (2), mean (11.33) mean (-110.22), median (2), mode (2) median (2), mode (2), mean (111.33) mean (-11), median (-1), mode (2)
-3, 0, -1, -2 mode (-3), median (0), mean (110.56) mode (-3), median (-1), mean (-0.67) mean (-11.78), mode (-3), median (-1) mode (-3), median (0), mean (11) mode (-3), median (-1), mean (10.67) mean (-110.89), mode (-3), median (0) mode (-3), median (-1), mean (110.67) mean (-11.67), mode (-3), median (-1)
1, 3, -1, 0 median (1), mode (1), mean (111.56) median (0), mean (0.33), mode (1) mean (-10.78), median (0), mode (1) mode (1), median (2), mean (12) median (1), mode (1), mean (11.67) mean (-109.89), median (1), mode (1) median (1), mode (1), mean (111.67) mean (-10.67), median (0), mode (1)
-4, -2, 1, 3 mode (-4), median (1), mean (111) mode (-4), mean (-0.22), median (0) mean (-11.33), mode (-4), median (0) mode (-4), median (2), mean (11.44) mode (-4), median (1), mean (11.11) mean (-110.44), mode (-4), median (1) mode (-4), median (1), mean (111.11) mean (-11.22), mode (-4), median (-1)