Ya Never Know

From BoardGameGeek:

Ya Never Know is a trick-taking game for 3-7 players played in 7 rounds. At the start of each round, players bet on the number of tricks they think they will win this round. Then, players take turns playing cards to score tricks. Once all cards have been played, players compare their score to their bet and gain points if they bet correctly. At the end of the seventh round, the player with the most points win. -description from artist