1)P(blue|not white)
2)P(not red|not white
A box contains 3 blue marbles, 5 red marbles, and 4 white marbles. If one marble is drawn at random, find:?
2015-11-16 1:54 am
回答 (1)
2015-11-17 8:13 am
✔ 最佳答案
(1)P( blue | not white )
= P( "blue" and "not white" ) / P( not white )
= P( blue ) / P( not white )
= (3/12) / (8/12)
= 3/8 ..... Ans
(2)
P( not red | not white )
= P( "not red" and "not white" ) / P( not white )
= P( blue ) / P( not white )
= 3/8 ..... Ans
收錄日期: 2021-05-02 14:05:44
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https://hk.answers.yahoo.com/question/index?qid=20151115175456AAF3zPh