In general, one is less interested in the probability of winning than in how much on average one could 'expect' to win when one gambles. To compute the expected payoff on a bet one multiplies the amount
of each payoff (prize) times the probability (odds) of getting that
payoff, and adds these together. If one ignores the Jackpot one's expected payoff on a $1 bet is 28.7 cents:
(50*130 + 5*3,250 + 1*26,000 + 0*74,750 + 0*65,780) / 169,911 = .287.