An Online Sweepstakes Has the Following Payoffs and Probabilities -The Probability of Winning at Least $1000 Is ________

An online sweepstakes has the following payoffs and probabilities. Each person is limited to one entry.
$$\begin{array} { r r } \text { Payoff } & \text { Probability } \\\hline \$ 1.00 & 0.1000 \\\$ 5.00 & 0.0100 \\\$ 10.00 & 0.0050 \\\$ 100.00 & 0.0010 \\\$ 1,000.00 & 0.0005 \\\$ 5,000.00 & 0.0001 \\\hline\end{array}$$
-The probability of winning at least $1000 is ________.