two dice are thrown. find the probability of getting each of the following results.
a.the sum of the numbers is less than 5
b. the sum of the numbers is not less than 5
f5 probability
2007-10-21 3:27 am
回答 (1)
2007-10-21 5:30 am
✔ 最佳答案
When two dice are thrown. There are totally 36 possibilities.
Die 1
1
2
3
4
5
6
Die 2
1
2
3
4
5
6
7
2
3
4
5
6
7
8
3
4
5
6
7
8
9
4
5
6
7
8
9
10
5
6
7
8
9
10
11
6
7
8
9
10
11
12
a. P(sum less than 5)
= 6 / 36
= 1 / 6
b. P(Sum not less than 5)
= 1 – P(Sum less than 5)
= 1 - 1 / 6
= 5 / 6
參考: Myself~~~
收錄日期: 2021-04-11 20:26:05
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