There are 8 balls in a black cloth bag, 3 of which are red, and if one of them is drawn at random, what is the probability that it is exactly red?
在一个黑布袋里放有8个球，其中有3个红球，从中任意取出一个球，恰好是红球的可能性是多少
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>