Exact model

A 2–10 card from a standard deck

Probability:
69.2%
Odds:
2.2 to 1
dBan
+3.5 dBan

Turn over one card and a plain 2 through 10 appears more than two times in three.

Calculation

p = 36 / 52 = 9/13

Assumptions

A well-shuffled standard 52-card deck gives every card the same chance. Aces and face cards are outside the numbered 2–10 category.

Sources

  1. Standard-deck model