Assertion: set's number | /r/HasProperty | 12 3
Facets:
Source sentences:
text: The average number of available Sets among 12 cards is ( 12 3 ) ⋅ 1 79 ≈ 2.78 {\displaystyle \textstyle {12 \choose 3}\cdot {\frac {1}{79}}\approx 2.78} ( 15 3 ) ⋅ 1 79 ≈ 5.76 {\displaystyle \textstyle {15 \choose