twenty four people had a blood test and the results are shown below.
A.B.B.AB.AB.B.O.O.AB.O.B.A
AB,A,O,O,AB,B,O,A,AB,O,B,A
(a) construct a frequency distribution for the date.
(b)if a person is selected randomly from the group of twenty four people.
what is the probability that his/her blood type is not O ?
一條數學help me
2015-03-20 10:56 pm
回答 (1)
2015-03-22 7:05 am
✔ 最佳答案
(a)Frequency distribution:
Blood Type：Frequency
O：7
A：5
B：6
AB：6
(b)
The required probability is
(5 + 6 + 6)/24
= (24 - 7)/24
= 17/24
收錄日期: 2021-04-15 18:47:40
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150320000051KK00034