Jiayi Supermarket holds a prize-winning sales activity, the method is as follows: every purchase over 100 yuan will get a lottery coupon, and the more you buy, the more you get. There are 10,000 lottery tickets in total, including 1 special prize, 10 first prizes and 100 second prizes. During this event, Dad made a purchase and spent a total of 295 yuan. What is the probability that Dad will win the first prize?
佳一超市举办有奖销售活动，办法如下：凡购物满100元得奖券一张，多购多得．共设有1万张奖券，其中设特等奖1名，一等奖10名，二等奖100名．爸爸在此活动期间购物一次，共花了295元，则爸爸获得一等奖的可能性是多少．
<gadget id="calculator">2 / 10_000</gadget>
<output>1/5_000 = around 0.0002</output>

<result>1/5_000 = around 0.0002</result>