【判断题】【消耗次数:1】
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.
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,则两次点数之和为8的概率为5/36.
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】 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】 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】 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】 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】 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】 He doesn’ t spend much time____ his homework.
①  in
②  do
③  on
④  to do
【单选题】 People’s status in society is frequently ____ by how much they own.
①  measured
②  examined
③  tested
④  questioned
【单选题】 Jack is so ____ to his appearance that he never has his clothes pressed.
①  adverse
②  anonymous
③  indifferent
④  casual
【单选题】 It’s no good ____ him. He is always indifferent towards others’ matters.
①  to turn to
②  turning to
③  turn to
④  turned to
【单选题】 The child tiptoed(翘起脚尖走)quietly to the bird. _____ into the forest when he was about to catch it.
①  Flew it away
②  Away flew it
③  Away it flew
④  Flew away it
【单选题】 In order to prepare a lecture, one must do a lot of research and spend plenty of time____ his material so that his speech is clear and easy to follow.
①  organizing
②  managing
③  operating
④  breeding
【单选题】 It is ten years_____ Miss Green returned to Canada.
①  that
②  when
③  since
④  as
【单选题】 Just as the soil is a part of the earth, ____ the atmosphere.
①  as it is
②  so is
③  the same as
④  and so is
【单选题】 Some words are hard to____ because they have too many different uses.
①  express
②  explain
③  define
④  describe
【单选题】 Modern ____ perhaps causes more problems than it solves.
①  technique
②  technology
③  tactics
④  tendency