Một bình đựng quả cầu xanh và quả cầu trắng. Chọn ngẫu nhiên quả cầu. Tìm xác suất để chọn được quả cầu xanh và quả cầu trắng.

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  As an orphan, he ___________ earn his living alone.
   

• Choose the best answer for the following sentence:

  They prayed that their daughter ___________ be lucky again.
  

• Choose the best answer for the following sentence:

  He __________ all that money, so he could save some.
   

• Choose the best answer for the following sentence:

  He spent all that money last week. He ___________ so much.
  
  

• Choose the best answer for the following sentence:

  He had to work hard so that he ____________ his family.
  
  

• Choose the best answer for the following sentence:

  Sorry, I __________ stay any longer. I really must go home.
  
  

• Choose the best answer for the following sentence:

  Yesterday I _________ finish the work because I was very tired.
   

• Choose the best answer for the following sentence:

  Last week he said I ____________ use the car at the weekend but now he won’t let me after all.
   

• Choose the best answer for the following sentence:
  My mother always moves my books around so I ___________ find them.
   

• Choose the best answer for the following sentence:

  I don’t like the cafes that don’t have chairs and people __________ eat standing up.