Please explain,, help ! ?
回答 (2)
2021-01-25 1:36 am
✔ 最佳答案
1.Out of the 11 letters, there are 2 letters of 'B'.
P(B) = 2/11
2.
Out of the 11 letters, there are 1 letter of 'P'.
P(P) = 1/11
3.
Out of the 11 letters, there are 1 letter of 'A' and 2 letters of 'I".
P(A or I) = P(A) + P(I) = (1/11) + (2/11) = 3/11
4.
P(not P) = 1 - P(P) = 1 - (1/11) = 10/11
2021-01-25 1:12 am
There are ten letters in the word PROBABILITY. Some are repeated, B and I. The rest happen only once.
Imagine you have ten scrabble tiles with the ten letters on them, and you put them in a bag and shake them up and draw a tile without looking.
Imagine you have ten scrabble tiles with the ten letters on them, and you put them in a bag and shake them up and draw a tile without looking.
收錄日期: 2021-04-25 14:33:35
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