某商店举办有奖销售活动,购物满100元者发兑奖券一张,在10000张奖券中,设特等奖1个,一等奖10个,二等奖100个,若某人购物满100元,那么他中一等...

作者: tihaiku 人气: - 评论: 0
问题 某商店举办有奖销售活动,购物满100元者发兑奖券一张,在10000张奖券中,设特等奖1个,一等奖10个,二等奖100个,若某人购物满100元,那么他中一等奖的概率是( )
选项
答案 B
解析

相关内容:商店,活动,购物,100元,者发,奖券,10000张,特等奖,一等奖,二等奖,100个,他中

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  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
  • 文件: /twcms/kongphp/cache/cache_redis.class.php
  • 位置: 第 85 行
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