After 5 judges rate a contestant, remove the highest score and the lowest score, the average score is 9.55 points. If only one highest score is removed, the average score is 9.46 points; if only one lowest score is removed, the average score is 9.66 points. What is the difference between the player's highest score and the lowest score?
5位评委给一名参赛选手评分后，去掉一个最高分和一个最低分，平均得分是9.55分．如果只去掉一个最高分，平均得分为9.46分；如果只去掉一个最低分，平均得分为9.66分．这名选手坐的最高分和最低分相差多少分．
<gadget id="calculator">9.66 * 4</gadget>
<output>38.64</output>

<gadget id="calculator">9.55 * 3</gadget>
<output>28.65</output>

<gadget id="calculator">38.64 - 28.65</gadget>
<output>9.99</output>

<gadget id="calculator">9.46 * 4</gadget>
<output>37.84</output>

<gadget id="calculator">37.84 - 28.65</gadget>
<output>9.19</output>

<gadget id="calculator">9.99 - 9.19</gadget>
<output>0.8</output>

<result>0.8</result>