Maths(probability)
2007-12-15 5:48 am
Anthony is guessing the month of birth of a new friend Miki. Mikl gives him a hint that is a prime number. What is the probability that Anthony will right?
回答 (2)
2007-12-15 6:45 pm
✔ 最佳答案
Total number of months in a year = 12The number of prime number small or less than 12 = 5 ......... (2, 3, 5, 7 & 11)
=> The probability that Anthony has a right guess = 5/12
2007-12-15 5:54 am
一年有 1,2,3,4,5,6,7,8,9,10,11,12
prime number 有 2,3,5,7,11
所以probability係 5/12
prime number 有 2,3,5,7,11
所以probability係 5/12
收錄日期: 2021-04-25 20:16:34
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071214000051KK03591