【判断题】【消耗次数:1】
将一枚均匀骰子连掷两次,则两次点数之和为8的概率为5/36.
正确
错误
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相关题目
【判断题】 将一枚均匀骰子连掷两次,则两次点数之和为8的概率为1/36.
①  正确
②  错误
【判断题】 将一枚均匀骰子连掷两次,则两次点数中最大点数不超过3的概率为5/36.
①  正确
②  错误
【判断题】 将一枚均匀骰子连掷两次,则两次点数中最大点数不超过3的概率为1/4.
①  正确
②  错误
【单选题】 随机地掷一骰子两次,则两次出现的点数之和等于8的概率为?
①  3/36
②  4/36
③  5/36
④  2/36
【单选题】 投两次骰子,两次至少有一次出现6,且两次骰子的点数之和为偶数的概率为
①  1/9
②  5/36
③  1/6
④  7/36
【单选题】 将一枚硬币连抛两次,则此随机试验的样本空间为( )
①  {(正,正),(反,反),(一正一反)}
②  {(反,正),(正,反),(正,正),(反,反)}
③  {一次正面,两次正面,没有正面}
④  {先得正面,先得反面}
【单选题】 一枚硬币掷两次,出现两个反面的概率是
①  1/3
②  1/4
③  1/6
④  1/8
【单选题】 投掷两个均匀的骰子,已知点数之和是偶数,则点数之和为6的概率为
①  5/18
②  1/3
③  0.5
④  以上都不对
【单选题】 掷二枚骰子,事件A为出现的点数之和等于3的概率为?
①  1/11
②  1/18
③  1/6
④  都不对
【单选题】 一枚均匀硬币抛三次出现一次正面的概率为
①  1/4
②  3/8
③  5/8
④  1/3
随机题目
【单选题】 _____ me most was that the young boy who had lost both arms in an accident could handle a pen with his feet.
①  That amazed
②  It amazed
③  Which amazed
④  What amazed
【单选题】 We will be losing money this year unless new economic plan of yours _____miracle
①  is working
②  works
③  will be working
④  worked
【单选题】 If you have never planted anything, you won’t be able to know the pleasure of watching the thing you have planted _____.
①  grow
②  to grow
③  growing
④  to be growing
【单选题】 Following are comments about the behavior that people in Korea usually expect in various social _____.
①  occasions
②  cases
③  situations
④  circumstances
【单选题】 The elbows on your coat have worn thin, so I must _____them.
①  mend
②  patch
③  repair
④  pitch
【单选题】 Mac’s close _____to his brother made people mistake them for one another.
①  resemblance
②  identity
③  appearance
④  relationship
【单选题】 The thieves _____the waste paper all over the room while they were searching for the diamond ring.
①  spread
②  scratched
③  scattered
④  burned
【单选题】 They _____ our house at $10.000.
①  count
②  vanish
③  weave
④  assess
【单选题】 George was introduced to _____activities at a young age, when she was hired to act as a lookout for drug-dealers.
①  illegal
②  lawful
③  faithful
④  peaceful
【单选题】 When he studied at college, Jack was supported by a _____ .
①  treatment
②  assistance
③  scholarship
④  protein