【判断题】【消耗次数:1】
有甲乙两批种子,发芽率分别为0.8和0.7,在两批种子中各任意选取一粒,则恰好有一粒种子发芽的概率为0.24.
正确
错误
参考答案:
复制
纠错
➡️如需代学继续教育,联系微信:yizhituziang

相关题目
【判断题】 有甲乙两批种子,发芽率分别为0.8和0.7,在两批种子中各任意选取一粒,则恰好有一粒种子发芽的概率为0.14.
①  正确
②  错误
【判断题】 有甲乙两批种子,发芽率分别为0.8和0.7,在两批种子中各任意选取一粒,则恰好有一粒种子发芽的概率为0.38.
①  正确
②  错误
【判断题】 有甲乙两批种子,发芽率分别为0.8和0.7,在两批种子中各任意选取一粒,则至少有一粒种子发芽的概率为0.06.
①  正确
②  错误
【判断题】 有甲乙两批种子,发芽率分别为0.8和0.7,在两批种子中各任意选取一粒,则至少有一粒种子发芽的概率为0.94.
①  正确
②  错误
【判断题】 有甲乙两批种子,发芽率分别为0.8和0.7,在两批种子中各任意选取一粒,则这两粒种子都能发芽的概率为0.56.
①  正确
②  错误
【判断题】 有甲乙两批种子,发芽率分别为0.8和0.7,在两批种子中各任意选取一粒,则这两粒种子都能发芽的概率为0.6.
①  正确
②  错误
【单选题】 甲、乙两批种子,发芽率分别为0.8和0.7,在两批种子中各随机取出一粒,至少有一粒种子发芽的概率为
①  0.8
②  0.7
③  0.56
④  0.94
【单选题】 有甲、乙两批种子,发芽率分别为0.8和0,7,在两批种子中各随机取出一粒,则两粒种子都发芽的概率为
①  0.56
②  0.16
③  0.34
④  0.78
【判断题】 一批玉米种子的发芽率为0.8,从中任取4粒种子做试验,求恰好有两粒种子发芽的概率,这是可以看着是一个贝努里概型
①  正确
②  错误
【单选题】 10万粒种子有1万粒不发芽,今从中任取100粒,则至少有80粒发芽的概率是()
①  0.9356
②  0.9899
③  0.9996
④  0.9999
随机题目
【单选题】 They will inform him ____ any progress they make in the experiment.
①  about
②  on
③  of
④  with
【单选题】 The reason I didn’t go to school that day was ____ill.
①  due to
②  that I fell
③  because of falling
④  because I fell
【单选题】 Chinahas launched a number of ____satellites since the 1970s.
①  information
②  Communication
③  TV
④  message
【单选题】 The weather in Harbin is quite different from____ in Hainan.
①  the one
②  one
③  that
④  it
【单选题】 24. The music sounded____. I enjoyed every minute of it
①  well
②  boring
③  wonderfully
④  beautiful
【单选题】 Julie has gained more experience than____ in her restaurant and the customers like her.
①  any waitress
②  other waitresses
③  the waitress
④  any other waitress
【单选题】 I eagerly answered all the questions, never ____ much about making mistakes.
①  worry
②  worried
③  worries
④  worrying
【单选题】 —Good morning, John. How are you doing?—____.
①  Im pleased.
②  Good night.
③  Not so bad. And you?
④  How do you do?
【单选题】 We often get ____ when people cut in line.
①  annoying
②  annoyed
③  to annoy
④  annoy
【单选题】 16. By using virtual reality programmes, it is possible to ____ deep into outer space without ever leaving Earth.
①  explore
②  find
③  escape
④  stay