概率问题求助
假设汽车的牌照是5位数(不能全为0),那么迎面驶来的一辆汽车的牌照号码是3的倍数的概率是多少?<br /><br />要求有详细的过程,最好按初中方法解答!先多谢各位了<br> 提示:<br />看一下1到99999之间有多少个数是3的倍数,<br> 解：(99999/3)/99999=1/3<br> ...............<br />汽车车牌不是还有字母么？？那怎么算？？<br> <br><br>QUOTE:原帖由 战巡 于 2007-11-23 20:25 发表 <a href="http://bbs.pep.com.cn/redirect.php?goto=findpost&pid=3481406&ptid=339623" target="_blank"><img src="http://bbs.pep.com.cn/images/common/back.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor='hand'; this.alt='Click here to open new window\nCTRL+Mouse wheel to zoom in/out';}" onclick="if(!this.resized) {return true;} else {window.open(this.src);}" onmousewheel="return imgzoom(this);" alt="" /></a><br />...............<br />汽车车牌不是还有字母么？？那怎么算？？ <br>假设汽车的牌照是5位数<br> 要注意0在万位的情况。<br>页:
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