What is Keno?

Lottery-style keno
is a betting game in which players pick a set of numbers from 1 to 80
by buying and filling out a play slip from a retailer, such as a bar or
restaurant.

 Bets typically range from $1 to $10. Payouts can range from
$1 to $1 million. The state lottery draws 20 winning numbers,
publicizing new results every 5 to 6 minutes, by television, for
instance. Winnings are determined by the amount of the wager and the
number of drawn numbers that a player matches.

    Source: Connecticut Lottery Corp.